It was because different states had their own dollars, and some places did not accept dollars from every state
Well one push factor would be they wanted to escape religious and political prosecution. Another is the Potato Famine. This was when their potatoes were contaminated and many died from starvation and disease.
I hope this helps somehow ;)
Answer:
A. It convinced people to work hard in order to be reborn in a higher caste.
Explanation:
