What is one way Hinduism spread? Wars were fought to convert neighbors.
The Hindus took over the Aryan people.
The beliefs moved into India from Southeast Asia.
The Vedas and religious rituals were adopted by other kingdoms.

which time period is this? or is this story fictional, i'm going to need more info to answer this question

worldwide, 780 million people do not have access to an improved water source. an estimated 2.5 billion people lack access to improved sanitation (more than 35% of the world's population)

i also think it is c

after the french-indian war.