问题详情

What can we infer from this conversation？
A．The new record of 400-meter in the NCAA Indoor Track and Field Championships is 44.63 seconds.
B．Kerron Clement broke the world record in the 400-meter when he was 19.
C．The student says he can win Kerron Clement if he is given $ 20.
D．Kerron Clement wants to become American because he doesn"t like his hometown.请帮忙给出正确答案和分析，谢谢！