You'd better not _____ here. The smoking area is over there. [ ]

A. smoke

B. to smoke

C. smoking

经产妇，临产16小时，破膜18小时。宫缩强，下腹压痛，枕左前位，先露高，胎心150次／分，宫口开大2cm，胎头双顶径9.6cm，导尿见肉眼血尿。最可能的诊断是（）

A.子宫破裂 

B.先兆子宫破裂 

C.胎盘早剥 

D.忽略性肩先露 

E.脐带脱垂