Hello. You have not shown the answer options, which makes it impossible for this question to be answered accurately. However, I will try to help you in the best possible way.
Jonah must choose the sentence that best shows a resolution for the text he is presenting, in other words, the best resolution is the best conclusion. In this case, Jonah must choose the sentence that highlights the main idea of the text, point out a position and finish, in a coherent way, the ideas previously presented.