Answer:
Option B.
Step-by-step explanation:
Cultural practices of language and religion changed, is the right answer.
Aliens from the north are considered to have moved to India and established in the Ganges Plain and Indus Valley in the period from 1800-1500 BCE. People belonging to this group spoke the Indo-European dialects and were known as Aryans meaning "Noble People" in Sanskrit. As soon as these people began conquering the land of others they established peaceful relations with the natives and this led a change in the cultural practices of language and religion.