Muhammad Bin Qasim entered the subcontinent in 711 AD, leading the Umayyad Caliphate's forces. So the correct answer should be around 711 AD, making "None of these" the most appropriate choice as 712 AD is very close.

The Objectives Resolution, a foundational document outlining the principles upon which Pakistan's constitution would be based, was passed by the Constituent Assembly on March 12, 1949. It emphasized that the constitution would be rooted in Islamic ideology and democratic principles. Liaquat Ali Khan, the then Prime Minister of Pakistan, moved the resolution.

The All-India Muslim League observed "Direct Action Day" on August 16, 1946, not August 6th of any year. This day was meant to demonstrate Muslim solidarity in support of the demand for a separate Pakistan. Page 357

Following the failure of the Second Round Table Conference in 1932, Ramsay MacDonald announced the Communal Award on August 16, 1932. This award granted separate electorates not only to Muslims but also to other minority communities in India.

While the Mughal empire continued after Aurangzeb, his death in 1707 is generally considered the beginning of the decline.

Muhammad Ghori decisively defeated Prithviraj Chauhan in the Second Battle of Tarain in 1192, a turning point that paved the way for the establishment of Muslim rule in northern India.

Quaid-e-Azam Muhammad Ali Jinnah rejected the idea of composite nationalism, advocating for a separate Muslim nation-state.

In the 1945-46 elections, the All-India Muslim League secured a significant victory by winning 425 out of the total 495 Muslim seats in the provincial assemblies, demonstrating widespread Muslim support for the League's demand for Pakistan.