B) I think sorry if wrong I tried
Answer: Topic sentences have a dual purpose to communicate the purpose of the paragraph and relate the paragraph back to the thesis. Or if you talking about something exciting, topic sentences have a dual purpose to communicate the purpose of the paragraph and provide exciting details.
Explanation: Hope this helps:)
To exaggerate is to represent something bigger than it really is.
It would look like Modern would be the participle.
Because Modern modifies what the Essay is, Essay is the word modified.
I'm pretty sure this is right, since no other word in the sentence seems to modify anything.