Historical context refers to the "back story" of the setting within your story. Historical context is knowing what situations pertain in the time period of, once again, the story being read.
How you say a word is often refereed to as ACCENT.
Accent refers to a manner of pronunciation that is peculiar to a particular individual, place or country. It is the way one sounds when one is speaking. One's accent is usually identified with the place where one lives, one's social status and ethnicity.
The answer should be B, since a topic sentence is a sentence that expresses the main idea.