For Each of the Following Sets of Subject, Audience, and Purpose

For each of the following sets of subject, audience, and purpose, select the letter of the most appropriate choice for the blank.
-Subject: home remedies for the common cold
Audience: people who have a cold
Purpose: ______________________________________

A) to persuade sick people that they should stay home from work
B) to convince people who have a cold to go see a doctor
C) to explain to those with a cold how they can make themselves feel better