― We’ll go to climb the mountain this weekend. Would you like to join us?

― _____

  A. That sounds fine to me.                             B. It’s really hard work.

  C. What do I need to prepare?                        D. What may I expect?

— We’ll go to climb the mountain this weekend. Would you like to join us?

— _____

A. That sounds fine to me.                                B. It’s really hard work.

C. What do I need to prepare?                           D. What may I expect?