The doctor thought _____ would be good for you to have a holiday.[ ]

A. this

B. that

C. one

D. it

1岁男孩，阵发性哭闹，进乳后呕吐，排果酱样粪便，右中上腹扪及6cm×5cm×4cm腊肠样肿块。首先考虑（）

A．肠扭转

B．肠道畸形

C．蛔虫性肠梗阻

D．肠套叠

E．盲肠肿瘤