Iam in the process of writing an essay with the topic on;

"why teachers should limit the amount of homework they give students"

i have my thesis already, i just need some assistance with my introductory.

any ideas on how i can start off?

Turn it into a question. I would suggest, "Why should teachers limit the amount if homework they give their students?" Then for your thesis, answer the question with your look on it. As in, if you are against it, then say that in your first sentence. If you agree, then say that in your first sentence. That way your thesis is full proof.

C could be an answer, but D is the best answer.