Given the topic idea, "Teachers gave 18.5% more homework in 2007 than in 2005 will it fit as a topic for research? a. The topic is satisfactory b. The topic is too narrow c. The topic is too broad d. This is a thesis statement

I think the best answer among the following options that states or described the said topic idea is in letter A. The topic is satisfactory. I hope you are satisfied with my answer and feel free to ask for more if you have question and further clarification about the said question.