The best answer to the question that is being stated above would be the sentence that is numbered one (1): 'When it comes to fiction, there are many genres'. The next sentences are only subtopics and only support the main idea that are lots of genres for fiction.
I don’t understand what is ur question
The trustworthiness of a speaker adds to the speaker's "appeal to reasoning" although it should be noted that it also contributes to the speaker's reputation.