The correct options are
B the visits from pilgrims
C the temple was constructed and the settlements around it sprung up later
D the administrative centres were where the king used to reside
Temple towns were special kinds of urban centres. In this form of urbanisation, a town developed around a prominent temple. Many devotees eagerly travelled long distances to visit these temples. Travellers who visit a place solely for religious purposes are known by a special term, pilgrim. The administrative centres were where the king used to reside. The administrative centres acted like the capital of the empire during that particular period.