For a passenger traveling with a service dog， you should：

For a passenger traveling with a service dog， you should：
A.Ask them to put the dog in a cage.
B.Verify the dog's service animal documentation and ensure all airline requirements are met.
C.Refuse to let the dog on the plane.
D.Charge an extra fee for the dog.
正确答案：B
试题解析：当乘客携带服务犬出行办理登机手续时，工作人员应核实服务犬的相关证明文件，并确保其符合航空公司的各项要求，以保障航班的安全和其他乘客的权益。