When checking in baggage， the passenger's ID card is mainly used to：

When checking in baggage， the passenger's ID card is mainly used to：
A.Verify the passenger's identity.
B.Check if the passenger has a criminal record.
C.Record the passenger's personal information.
D.None of the above.
正确答案：A
试题解析：办理行李托运时，使用乘客身份证主要目的是核实乘客身份，确保行李与乘客对应，并非检查犯罪记录或单纯记录个人信息。