Kate : Hello, James! We will meet at the cafe tomorrow. How about joining us?
James : Well, | don’t know. | guess - - - -
Kate : OK. May be another time.
Which of the following completes the dialogue above?
A) I will be there on time.
B) I arrive there in a few minutes.
C) I book a flight ticket once.
D) I will go shopping with my mum.