单项选择题

Last year he experienced stomach trouble from which recovered completely after being treated in a hospital for ten days.

A.去年他患了胃病,在医院治疗10天后痊愈。
B.去年他患胃病后,去医院治疗,花了10天才痊愈。
C.去年他犯了胃病,在医院只治疗了10天,他的胃又好了。
D.去年他的胃突然有毛病,到医院看了10天还没有完全好。