Reword.
If you're paraphrasing something, you are not using the exact words that the original author/speaker/etc used, but you are retaining the important pieces and gist of the passage.
The correct answer is B. Complex sentence.
Simple sentences are sentences made of only one independent clause. Compound ones have many independent clauses in them. Complex sentence is made out of a mixture of both dependent and independent clauses.
The topic sentence is the last one "A hero is someone who sacrifices himself for a greater cause."
