Which of the Following Is TRUE About the Use of Email

Multiple Choice

Which of the following is TRUE about the use of email as a mode of business communication?

A) Email is usually the best choice for brief online conversations.
B) Email is not suitable for private, short- to medium-length messages; IM or Twitter are more effective for this purpose.
C) You need to join a special online group or be friended by a group member in order to communicate with someone through email.
D) Email allows senders to compose substantial messages in private and on their own schedule, and it allows recipients to read those messages at their leisure.