the answer is c you have to write in a short paragraph or sentence in your own words the main idea or plot of a story
And, what is the question you are asking? I don't really understand..
I think the answer is B but don't be mad at me if its wrong because i'm not in high school for another 2 years.
"He exercised while I watch television." because the tenses of the verbs don't match--"exercised" is past tense and "watch" is present.