—Could you tell me _____? 　　

—Glad to help. [ ]

A. if I have been to the Great Wall

B. where did he study

C. how I can get to the station

D. what's your name

进步主义教育运动最早的倡导者和代表人物是（）

A.桑代克

B.华虚朋

C.克伯屈

D.帕克