新生儿生后12天，不规则发热已5天，近2天皮肤黄染加重，神萎，脐部少许分泌物，肝右肋下2cm，脾左肋下lcm，母血型为"O"，子血型为"A"，可能的诊断为

A．新生儿ABO溶血症

B．新生儿败血症

C．新生儿生理性黄疸

D．新生儿肝炎

E．先天性胆道闭锁

— Jenny took the 8:00 bus to Guangzhou this morning.

— Really? He _____ the 9:00 train. It's much more comfortable and safer to travel by train. [ ]

A. could have taken

B. should take

C. must have taken

D. can take