To evaluate a piece of media means to

a. express the main idea in a clear and specific way.

b. disseminate the contents to a wide audience.

c. judge the purpose and message in a thoughtful way.

d. communicate the information to a group of people.

Answer C.

To evaluate a piece of media means to judge the purpose and message in a thoughtful way. The purpose is the reason, the intention; and the message is the content, so after analysing carefully, it is possible to conclude the quality of a piece of media.

A, B and D use actions (Express; Disseminate and Communicate) that are related to the actual fact of writing or spreading the news.