Three delivery, also known as triple option, is a type of play in American football where the quarterback has three different choices on how to handle the ball after the snap. The first choice is to keep the ball and run, the second is to pitch it to a teammate who is running, and the third is to throw the ball.
Imagine you're playing outside with your friends and you have a tennis ball. Your friend is running towards you and you have three choices on what to do with the ball. You can keep the ball and run with it, you can toss it to your friend who is running with you, or you can throw it to another friend who is far away.
In football, the quarterback has to make this decision very quickly, in a matter of seconds, as the defense is trying to tackle them. It's a very strategic play that relies on teamwork, communication, and quick decision making to be successful.
When executed correctly, the three delivery play can confuse the defense and create openings for the offense to gain yards and score points.