屈肘动作的完成是由于（　　）

A．肱二头肌收缩

B．肱三头肌舒张

C．肱二头肌收缩的同时肱三头肌舒张

D．肱二头肌等屈肌肌群收缩，同时肱三头肌等伸肌肌群舒张

Please send us all the information _________ you have about the candidate for the position.

A．that

B．which

C．as

D．what