患儿男，2个月，因为黄疸伴肝脏肿大1个月以黄疸待查收入院。入院后血清学检查，结果示抗HCMVIgG阳性、抗HCMVIgM阴性，住院2周后抗HCMVIgG抗体滴度≥4倍升高。该患儿最可能的诊断是（）

A.HCMV再发感染

B.HCMV活动感染

C.HCMV潜伏感染

D.胎传抗体存在可能

E.HCMV感染

What the doctors really doubt is _____________ my mother will recover from the serious disease soon.

A．when

B．how

C．whether

D．why