What caused Aryan religion to change over time?

A. Economic problems made people forget religion.
B. Commoners overthrew the priests.
C. The caste system fell apart.

D. Spiritual experience replaced sacrifice.

I think it's a. Economic problems made people forget religion

the dust bowl, otherwise known as the dirty thirties, was a huge dust storm that killed multiple (and i mean  multiple) farmer's crops, leaving them homeless, and foodless, and jobless. in california, there were 5.7 million residents, and the population shrank as mexicans were repatriated. however, when the dustbowl happened, a lot of people began to move to california. by 1940, 250,000 people had arrived. therefore, your answer would be  the population increased, massively.  i hope this !

explanation:

austria

hugary

yugoslavia

czechoslovakia