— Where is the school singing contest going to be held tonight?

— I am not sure. Is it in the hall _________ the students often have a meeting? [ ]

A. where

B. which

C. that

D. when

女，50岁，左枕颞部持续性钝痛3年，晨起发作，抬头或低头疼痛加重，每次发作均达数小时，且疼痛停止后有发际触痛，其姊妹均有类似头痛史。

最可能的诊断（）。

A.颞动脉炎

B.丛集性头痛

C.偏头痛

D.肌紧张性头痛

E.枕大神经性头痛