Answer:
Passive aggression
Explanation:
Passive aggression: The term passive aggression is a form of an individual's behavior that shows indirect aggression rather than direct aggression. An individual who poses passive-aggressive behavior generally exhibit resistance in his or her behavior by denying others (family, friends) demands or requests through procrastination, acting stubborn, or expressing sullenness.
In the question above, passive aggression best describes Chad's statement.