--- Where is your mother?

--- She _______ to Sichuan on business. She has ______ there four times recently.

A．has gone; gone

B．has been; been

C．has gone; been

D．has been; gone

张某盗窃而被依法逮捕，一审人民法院在审理案件之后，判决被告人免除刑事责任。在抗诉期间，人民检察院以量刑不当为由提出抗诉。对于被告人张某，下列哪些说法是正确的(　)

A．应当在判决生效之日立即释放

B．应当在判决宣告后立即释放

C．应当在判决书送达后立即释放

D．应当在第二审判决或裁定作出后决定是否释放