Answer: D
Explanation: A thesis statement is a statement, not a paragraph. The main point you're trying to bring out in your persuasive essay can be brought out in just one sentence, maybe two.
It generally goes at the end of the first paragraph. Usually you want to make it concise- "This thing is good/bad because of reason A and reason B" and then later in your essay you'll have one paragraph about A and one about B.