When a passenger asks about the cheapest ticket for a certain route， you should respond：

When a passenger asks about the cheapest ticket for a certain route， you should respond：
A.I don't know， check online.
B.Let me check our system for the best available fares on that route.
C.The price is always the same.
D.You can't afford the cheapest one.
正确答案：B
试题解析：作为服务人员，应积极帮助乘客查询相关票价信息。