Multi-select problem: How does the next paragraph end?

How to do a throw in soccer
Pick up the ball with both hands, one on each side of the ball.
Your hands should be roughly evenly spaced--if the ball was a clock, your right hand would be at 3:00 and your left at 9:00. It can help to shift them back a bit, too, so your thumbs are almost touching in the back of the ball.

Available options: A). This way, when you throw the ball, your thumbs will probably be closer to each other. Practice chest-strike and back slap. B). This helps you get a bit more leverage on the throw. Throw-ins only occur when the whole ball passes over one of the sidelines. C). Learn to throw based on your movements. A standard throw in soccer is to throw a straight pass to your dominant shoulder. D). Stretch your arms as wide as they can go. Lift up your arms and lower your body back into the arc of your actual throw in the air.
B).