How did walter learn how to read book : bad boy

What is the main idea of this paragraph from the volcanoes section of the ready.gov website

Why would a letter from the author support his argument better than an essay? o a. it can be less threatening to a reader and more personal. o b. it can let the author give lots of factual data to support his argument. o c. it can give the author a chance to make mistakes. o d. it can allow the audience to read it many times.

What scene from beowulf is an example of internal conflict