What is not Mencius’ ideas？

A.Everyone was born morally good

B.Benevolen tgoverning was an alternative approach to bring about national unification.

C.Is it not a delight to acquire knowledge and put it into practice？

D.I desire fish but I also desire bear’s paw.If I choose the bear’s paw I must relinquish the fish since I cannot have both.Similarly， I desire life but also righteousness.So， if I cannot have both I will choose righteousness and relinquish life.

正确答案：Is it not a delight to acquire knowledge and put it into practice？