In the context of levels of communication, internal messages:
a. include website communication and annual reports.
b. are communicated through media advertisements.
c. are intended for recipients within an organization.
d. include communication to the public.

The answer is C.

Explanation:

Internal messages are a form of internal communication within an organization.

Internal communication is the sharing of information between organizational members or parts of the organization.

Answers a. b and c, are incorrect since information is shared with general public, and not only with members of the organization. Therefore, they are not internal messages.

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