Final answer:
A division paragraph is used to break down a topic into its different parts or categories. A good supporting sentence should provide factual information and not opinions.
Step-by-step explanation:
The question is asking for a supporting sentence for a division paragraph. A division paragraph is a paragraph that is used to break down a topic into its different parts or categories. Each supporting sentence should provide information about one of the parts. Option D, 'The third and most important part is the essay portion of the test,' would not be a good supporting sentence because it is giving an opinion rather than providing factual information.
Learn more about Division paragraphs in English writing