If you select the ALTERNATE FLAPS to the 'ARM' position:
A.A.Trailing Edge flap bypass valve closes, standby pump activates and ALTERNATE FLAPS position switch is armed
B.B.Trailing Edge flap bypass valve closes and standby pump activates
C.C.Standby pump is armed while the Trailing Edge flap bypass valve is de-energized
D.D.Standby pump is armed while the Trailing Edge flap bypass valve is energized
正确答案是A