Im sorry but we would need to read the text to answer, if you send me a pic i will help you tho :)
D I believe the answer is
The topic sentence for the paragraph above is A. Sentence 1. A topic sentence is supposed to give the general idea of a paragraph. Sentence 1 briefly describes what and where plates are in the Earth's crust. The rest of the sentences give more detail about tectonic plates.
The picture is very blurry, can you post a new one?