Answer:
If you're creating an opening paragraph and you present supporting details in the beginning, your topic sentence is most likely to be a. at the end of the paragraph.
Explanation:
Topics sentences express the main idea of a paragraph and are usually found at the beginning of the paragraph. However, topic sentences can come at the end of the paragraph as a summary or conclusion of what has been stated before. This would be the case of an opening paragraph that presents supporting details at the beginning.
