The amber FEEL DIFF PRESS light illuminates when the:

The amber FEEL DIFF PRESS light illuminates when the:

A.A.Flaps are up & a pressure imbalance between hydraulic systems A & B is detected or if one of the elevator feel pitot systems fails

B.B.Flaps are not up and a hydraulic pressure imbalance is detected or one of the elevator feel pitot systems fails

C.C.Flaps are up or down and a hydraulic pressure imbalance is detected or if one of the elevator pitot systems fails

D.D.No correct answer is provided

正确答案是A