According to the Text, All of the Following Are Potential

According to the text, all of the following are potential reasons why asking for an appointment by email is a good idea, EXCEPT:

A) Emails offer flexibility to both the salesperson and a prospect.
B) Emails require immediate responses
C) Through emails you show respect to your prospects' time
D) A professionally written email message that clearly and succinctly outlines the background and presents the reasons for the meeting surely captures a prospect's attention
E) Emails are suitable for a prospect who does not like to take decisions in haste.