The 20th Amendment, also called the Lame Duck Amendment, decreased the amount of time between the presidential election and the inaugration of the new president. What were the advancements that allowed for this amendment?

the roman army grew in size and became dominant in the mediterranean region.

the answer is b: the religion they practice.

here's why:

there were many different native american tribes and those with similar characteristics formed a main tribe or nation. each had its own language, religion and customs.