People go to work in different ways. Some people walk to work, because they live not very far. Some people go to work by car, because the car is fast. In Wuhan, many people like to take the subway. It's very cheap, easy and convenient (便利的). You only need to pay two to seven yuan for one ticket, and you can get to your place quickly. In the morning and in the evening when people go to or come from work, the subway is always crowded. How can you find a subway station in Wuhan? When you see the sign of "
", you can find it near there.
Some people walk to work because they live near.
The sign of the subway in Wuhan is ____.
B . 
C . 
