Select the correct answer. Read this post on the microblogging site of an arts council.

Time for the annual book fair! Click the link to learn about the what, when, where, and who.

What is the purpose of this post?

A.
to sell books presented at the fair
B.
to persuade people to donate to the fair
C.
to provide information about the fair
D.
to exchange ideas with people about the fair