The correct option is B 712 A.D.
The rise of Islam in India began with the conquest of Sind, one of the provinces in present-day Pakistan and one of the important sites of Indus valley civilisation. Muhammad-Bin-Qasim, a Umayyad general conquered the Sind and Punjab region in a very tender age of 17 in 712 AD. Sind invasion is considered one of the world's historic marvels as it led to the spread of Islam in South Asia.