Answer:
The author provides background information so that the reader knows what caused the death of the well-known Lieutenant
Colonel Custer
Explanation:
The pronoun is is because pronouns are such words like,as,IS, and others.
So the pronoun is is
You do in parentheses like this ( authors last name,and page number)
I think it's D because A is correct B could be right and C is wrong. But the answer D is basically A and B combined. I know i explained that horribly but D should be correct.
