单项选择题

左主起落架2号刹车在滑行时候发现不工作,可能是下列哪个部件失效引起的()

A.LEFT MAIN LANGDING GEAR AXLE CONCENTRATOR FAILURE
B.LEFT INBOARD ELECTRIC BRAKE ACTUATION CONTROLLER FAILURE
C.RIGHT ELECTRIC BRAKE POWER SUPPLY UNIT FAILURE
D.N/A