Dave : Hello.
Jack : Hi, Dave. It is Jack.
Dave : Hi, Jack. Are you busy on Friday afternoon?
Jack : No, not at all. Why?
Dave : We are planning to go to the rock concert at the city hall. - - - -?
Jack : Why not? We are going to have fun. Thanks for your invitation.
Which of the following completes the dialogue above?
A) Would you like to join us
B) What would you like
C) May I take your order
D) How about staying at home