An incumbent senator appears on television, saying that she should be re-elected because she has brought jobs to the state. Obviously, this effort is mass mediated and is an attempt to persuade. For it to be considered advertising, which other condition must be met?

a. The claim must be regulated by the Federal Communications Commission.
b. The airtime must be paid for.
c. It must be a public service announcement.
d. The other candidates' opinions must be presented.