设sina＞0,cosa＜0,且sin＞cos,则的取值范围是   （  ）         

A． (2kp+,2kp+), kÎZ	B． (+,+),kÎZ
C．(2kp+,2kp+p),kÎZ	D．(2kp+,2kp+)(2kp+,2kp+p),kÎZ