There are no options so I have to infer the answer and I believe it to be the answer above.
A passive-aggressive person is a person who does not express their feelings directly but instead uses nonverbal methods such as silent treatments or sarcasm. They are also known to insult people but then pass this off as a joke.
Such people are therefore aggressive, but are hiding it behind a veil of passivity. There are many reasons a person might end up this way but a major one is that they may feel like their opinions do not matter so instead of stating those opinions, they act out by being sarcastic or nonverbal.