If a passenger's baggage is lost during check - in， what should you do first？

If a passenger's baggage is lost during check - in， what should you do first？
A.Calm the passenger and start tracing the baggage immediately.
B.Tell the passenger to wait until the end of the flight.
C.Blame the passenger for not taking good care of the baggage.
D.Report to the police.
正确答案：A
试题解析：当乘客行李在办理托运时丢失，首先要安抚乘客情绪，然后立即着手追踪行李去向。