Which of the following will be the correct word for the sentence- Someone who attacks?

Aggressor

Aggressor - one that commits or practices aggression.

Alimony - financial support that a person is ordered by a court to give to their spouse during separation or following divorce; maintenance.

Align - place or arrange (things) in a straight line.

Allegory - a story, poem, or picture that can be interpreted to reveal a hidden meaning, typically a moral or political one.