What Distinguishes the Federal Communications Commission (FCC) Equal Time Rule

What distinguishes the Federal Communications Commission (FCC) equal time rule from its fairness doctrine?

A) The equal time rule has been effectively ended, while the fairness doctrine continues to be enforced and has even been expanded upon.
B) The equal time rule applies to electronic media such as radio and television, while the fairness doctrine applies to print media.
C) The equal time rule applies to political advertisements, while the fairness doctrine applied to public affairs programming.
D) The equal time rule pertains to the media's role in facilitating public debate, while the fairness doctrine pertains to its role as a government watchdog.