On December 20, 1999, Portugal officially transferred the administration of Macao to the People's Republic of China. This event marked the end of nearly 450 years of Portuguese presence in the territory. Following the handover, Macao became a Special Administrative Region (SAR) of China, operating under the 'one country, two systems' principle, similar to the arrangement established for Hong Kong in 1997.

Sher Shah Suri is credited with establishing a highly efficient and systematic revenue administration during his brief reign. He introduced land measurement techniques, standardized currency, and implemented a structured tax collection system that directly benefited the peasantry and the state treasury. His administrative reforms were so effective that they served as a foundational model for the later Mughal administrative structure, particularly under Emperor Akbar, who refined and expanded upon these early innovations.

Sher Shah Suri is widely credited with establishing a robust and systematic land revenue administration during his brief reign. He implemented the 'Rai' system, which involved measuring land and assessing taxes based on productivity. His administrative reforms, including the standardization of currency and the improvement of the land revenue collection process, served as a foundational model for subsequent rulers, including the Mughal Emperor Akbar.

The Mughal Emperor Babur authored the 'Baburnama', a significant historical memoir. Similarly, Emperor Jahangir wrote his own memoirs titled 'Tuzuk-i-Jahangiri'. Since both pairs 1 and 4 are accurately matched, option C is the correct choice. These works provide invaluable insights into the political, social, and personal lives of the Mughal emperors during their respective reigns.

Muhammad Shah, also known as Muhammad Shah Rangeela, was the Mughal emperor during the invasion of Nadir Shah in 1739. Nadir Shah looted the imperial treasury and seized the Peacock Throne, which was never recovered by the Mughal dynasty.

Lord Cornwallis served two terms as the Governor-General of India. He is particularly famous for the Cornwallis Code, which introduced significant judicial, police, and revenue reforms, including the Permanent Settlement of 1793. These reforms aimed to stabilize the British administration in India and establish a structured legal and land revenue system that influenced colonial governance for decades.

Warren Hastings, the first Governor-General of Bengal, was impeached by the British Parliament upon his return to England. The impeachment trial, which lasted several years, focused on allegations of corruption, abuse of power, and administrative misconduct during his tenure in India. Although he was eventually acquitted of the charges, the trial remains a significant event in the history of British colonial administration.

The Anti-Ballistic Missile Treaty was signed in 1972 as part of the Strategic Arms Limitation Talks (SALT I) between the United States and the Soviet Union. The treaty aimed to limit the deployment of missile defense systems, thereby maintaining the principle of Mutually Assured Destruction (MAD) and reducing the incentive for a nuclear arms race. It remained a cornerstone of international security and nuclear arms control for three decades until the United States withdrew from it in 2002.

After the defeat of Nazi Germany in 1945, the country was divided into occupation zones. The western portion, which later became the Federal Republic of Germany (West Germany), was administered by the Allied powers of France, the United Kingdom (England), and the United States of America.

François Bernier was a French physician and traveler who spent twelve years in India during the reign of Emperor Aurangzeb. He served in the Mughal court and documented his observations in his famous work, 'Travels in the Mogul Empire'. His writings provide significant historical insights into the administration, economy, and social life of the Mughal Empire during the 17th century.