He is very late for the meeting because his car was held up in the heavy traffics.

十二指肠球溃疡腹痛规律是（）。

A.持续性腹痛

B.疼痛-排便-加重

C.进食-疼痛-缓解

D.疼痛-进食-缓解

E.疼痛-排便-缓解