Oral history has an added flair from being passed down from generation to generation that written history does not have.
The woodland period which was from 100 BCE to the time Europeans reached the eastern part of the Americas.
The second alternative is correct (B).
Traditional religions spread in a variety of ways, including the migration of religious people, the so-called missionaries. This is very common in Mormon and Catholic religion.
The other alternatives represent the opposite. Spreading the traditional religions means that people are not questioning the old traditions or changing their beliefs.