---Tomorrow we’ll go to the zoo for our class trip. How will we get there?

--- You can get there         , but I’ll walk there.

A．by bus

B．by a bus

C．take a bus

D．with a bus

如果单方要求解除合同并依据法定或事先约定的原因，这种解除权属于( )。

A．支配权
B．形成权
C．请求权
D．抗辩权