When a passenger with a mental disability is checking in， you should：

When a passenger with a mental disability is checking in， you should：
A.Treat them like any other passenger without special attention.
B.Be patient， communicate clearly， and follow the airline's special assistance guidelines for such passengers.
C.Avoid interacting with them.
D.Ask them to wait until there are fewer passengers.
正确答案：B
试题解析：当有精神残疾的乘客办理登机手续时，工作人员应保持耐心，与他们进行清晰的沟通，并且按照航空公司针对这类特殊乘客的特殊协助指南来提供服务，以满足他们的需求并确保登机过程顺利进行。