A goal is scored in soccer when the ball crosses the goal line.
To determine when a goal is scored in soccer, you need to understand the basic rules of the game. In soccer, a goal is scored when the ball crosses the goal line and enters into the net between the goal posts. So, out of the given options, the correct response is "the ball crosses the goal line". This indicates that the ball has successfully passed over the goal line and into the net, resulting in one point being awarded to the team that scored. The other options, such as "the ball hits the outside of the net" or "the ball hits the goal post", do not count as a goal since the ball did not actually cross the goal line. Therefore, the answer "none of the above" is incorrect in this case.
