Which of the Following Is True of Communication Channels

Which of the following is true of communication channels?

A) Face-to-face meetings are most acceptable for simple messages that are easy to convey.
B) A simple e-mail works best for messages that are complex and difficult to convey.
C) Where immediate feedback to the sender is valuable,written channels should be used.
D) Spoken channels are less personal and less likely to be perceived as supportive.
E) Written channels can be considered as documentation when formal policies are being conveyed.