The reason ____ he was late for the meeting was _____ he forgot to use the alarm clock.

A．which; because

B．why; because

C．why; that

D．that; because

患者陈某，高热不退，面色红赤，汗出恶热，渴欲饮水，舌红，脉洪大有力。治宜选用（）

A.银翘散

B.白虎汤

C.清营汤

D.竹叶石膏汤

E.麻黄杏仁甘草石膏汤