They actually don't know for sure what led to the decline but a lot of people believe that the Aryans invaded and conquered the Indus Civilization which would make sense because they were the next people group to live there. I hope this helps!
Answer:
Answer is B
Explanation:
got it right on the test
please mark me brainliest
Answer:
B
Explanation: because A is a very reasonable answer but then B a lot of people will disagreee with that making it debatable
