When a passenger has a large carry - on bag that seems to exceed the size limit， you should：

When a passenger has a large carry - on bag that seems to exceed the size limit， you should：
A.Let them take it on board without saying anything.
B.Politely inform them of the carry - on size limit and suggest checking it in.
C.Yell at them for bringing an oversized bag.
D.Tell them to throw away some items from the bag.
正确答案：B
试题解析：当乘客携带的随身行李似乎超过尺寸限制时，应礼貌地告知乘客随身行李的尺寸限制，并建议其办理托运。