Your classmate Kerem calls you on Thursday evening. He says he needs help moving some new bookshelves for the school library on Saturday morning. You want to help him, but you just remembered you have a dentist appointment at that time. How should you respond to him?
A)Of course! I can carry heavy things easily. See you there.
B)I'd love to help, but I have an appointment at that time. Sorry.
C)Bookshelves are too heavy. Why don't you ask someone stronger?
D)Saturday morning is too early. Can't we do it in the afternoon?