《素问·奇病论》中"人生而有病巅疾者"，巅疾是指：

A．癫病

B．狂病

C．痫病

D．厥证

E．中风

—Why does Mary look so worried today?

—I’m not sure, but she _____ a small accident driving here.

A．must have

B．might have

C．must have had

D．might have had