-What would you rather do this weekend，go to a concert or an art show?

-________Both are exciting to me.[ ]

A．Is that right?  

B．It’s up to you.

C．That’s great!  

D．I have got that.

____ you want to remember its usage, you’d better make a sentence with the new word.

A．Unless

B．While

C．Now that

D．Even if