It can be concluded from the way the author s father treated Debbie that______.A．strict di

It can be concluded from the way the author s father treated Debbie that______.

A．strict discipline will finally pay off

B．encouragement can make people improve

C．success is achieved through hard work

D．small mistakes may lead to serious problems

请帮忙给出正确答案和分析，谢谢！