U should of put this in science u put this in English :0
The last one. The only scenario where you wouldn't put a comma in the first quote is if it's a completed remark that uses particular punctuation such as a quotation or exclamation mark, but never a period. Hope this helped.
It the beginning sentence, it's states "write a multi paragraph essay". Most likely, it's more than 1 paragraph. If you wanted to make extra sure, you could do (1) introduction paragraph,(1) body paragraph, and (1) conclusion paragraph. If you think that you could possibly do 3 body paragraphs with the given question, go ahead.