What does the headmaster suggest Mrs. Harris do at the end of the conversation?
A.Persuade her son into making a more realistic decision.
B.Prepare her son for an art course at a technical college.
C.Wait until the headmaster discusses with Mr. Simms.
D.Talk with Mr. Simms about William"s chance of acceptance.
请帮忙给出正确答案和分析,谢谢!