Answer:
(C) An autobiography's primary purpose is to entertain but it is also considered factual.
This is because the story is about the author, and the author is the one writing the story. The author will try to entertain the readers about his life and story, but it is also factual because it is true.
In experimental physics, reverberation produces echo and thus makes undesirable sound. An echo is a sound reflected off of a surface. In a big hall, it interferes with the actual sound. It gives confusion when people are having a conversation.
I know that the hippes tried to stay positive and they were all about peace i guess
The answer would be A. Assets