"A practice seldom used outside of business" does not apply to persuasion. Option A is correct.
Persuasion refers to a process by which a person seeks to change another one's or a group's attitude, belief or behavior toward some event, idea, object, or other person(s), by employing written or spoken words to convey information, feelings, or reasoning, or a combination of them. In other words, persuasion is the act of persuading someone to do something or to believe that something is true.
