Final answer:
The restart is a goal kick for the defending team when an offensive player last touches the ball before it goes out of play behind the goal.
Step-by-step explanation:
When the ball goes out of play behind the goal and an offensive player touched it last, the restart is a goal kick for the defending team.
The ball is placed within the goal area and is kicked by the goalkeeper of the defending team.
This restart is designed to put the ball back into play and give the defensive team an opportunity to move the ball away from their goal.