I believe the best choice is A) He told his friends he was the best. This is if they're asking if it went well mentally. If they're asking if it went well physically, then the answer is B. Hope this helps ;)
C. Brainstorming; brainstorming literally means writing down your thoughts
The correct answer is A) IRRELEVANT AND SHOULD BE REVISED OR DELETED.
Topics sentences should support the thesis statement, so their relation with it should be clear and concise. Afterwards, each topic sentence can be further explained, exemplified or expanded. However, first of all topic sentences must summarize the main idea of the paragraph and show how it is related to the thesis statement.