The real Christopher Paul Gardner is an American businessman， investor， stockbroker， motivational speaker， author， and philanthropist.What does “philanthropist” mean？

A.A man who becomes very rich by his own efforts.

B.A very rich person.

C.A very poor person.

D.A rich person who gives a lot of money to help poor people.

正确答案：A rich person who gives a lot of money to help poor people.