The main discrepancy between Mr. Willetts and the one who mocked him is______.A．whether di

The main discrepancy between Mr. Willetts and the one who mocked him is______.

A．whether dinosaurs and space can really get kids into science

B．whether the keynote speech is much too simplistic and naive

C．whether passion and fancy play a key role in science learning

D．whether a minister should patronize the refugees and immigrants

请帮忙给出正确答案和分析，谢谢！