The answer is B. I took the test.
Explanation:
a. When Esther got tired, she would sit on the tree trunk to rest.
b. He was a handsome tall man whose clothes were too big for him.
First off, a persuasive speech is a speech trying to convince the readers to agree with his/her speech. So your answer has to be A.
Why seat belts should be mandatory in all states is the answer because it obviously is trying to convince others that seat belts should be mandatory in all states.
Hope I helped. :)