The wrong you’ve done to her is terrible, ____ you should make an apology to her, I think.

A．for which

B．about which

C．of which

D．with which

病人因右下后牙夜痛2天就诊。查右下第三磨牙无龋，3度松动，叩诊（+），远中牙周袋深及根尖，龈轻度红肿，冷测引起剧烈疼痛。病人所诉疾病应诊断为（）。

A.慢性牙髓炎

B.急性根类炎

C.可复性牙髓炎

D.逆行性牙髓炎

E.急性牙周脓肿