Which of the following about Jerry Kupchynsky is TRUE？A．He tortured his students when they

Which of the following about Jerry Kupchynsky is TRUE？

A．He tortured his students when they screwed up in the class.

B．He encouraged his students when they made mistakes.

C．He was fired for his strict policies toward the students.

D．He was greatly honored by his students when he died.

请帮忙给出正确答案和分析，谢谢！