Which of the Following Responses Is Most Effective in Scheduling

Which of the following responses is most effective in scheduling a follow-up appointment?

A) "We only schedule follow-up appointments on Wednesday afternoons between 2:00 and 4:00 PM."
B) "We have appointments available on Thursday morning and Friday afternoon; which would you prefer?"
C) "Please call tomorrow and schedule the appointment for next week."
D) "We will send you an appointment reminder card after we schedule the appointment."