It promoted the (relatively) rapid diffusion of immigrants, language, and domesticated crops and animals. Those factors are examined in excellent detail in Jared Diamond's book, "Germ, Guns and Steel" which I highly recommend for anyone studying the development of world cultures. It's a long read, but well worth it.
Hindus recognize three principle gods
-Brahma, who creates the universe.
-Vishnu, who preserves the universe.
-Shiva, who destroys the universe.
It all depends on which god the Hindu community worships.
She was not an aristocrat. She was a godess not a real person.
A is the answer i believe