If you lose hydraulic pressure in System B, the following systems will be affected:
A.A.Yaw Damper, Alternate Brakes, Autopilot A, Trailing Edge Flaps
B.B.Main Yaw Damper, Normal Brakes, Autopilot B, Trailing Edge Flaps
C.C.Standby Yaw Damper, Normal Brakes, Autopilot A, Flight Spoilers
D.D.Ground Spoilers, Normal Brakes, Autopilot B, Trailing Edge Flaps
正确答案是B