Please choose the correct ending to complete the given sentence: Tennis serve with ball bouncing: He is alone and starts to illustrate different tricks that you could do when servicing the ball. for the first one

Ending1: we see a man bungee hosing down a sand pit, laying on himself, and talking about the technique. Ending2: , he has the ball on the end of the tennis racket that is upside down, he jilts the tennis racket up and hits the ball while it is up in the air. Ending3: , you have to push it straight into the hoop and you just have to fit in so you never hurt yourself and you can make it there without falling. Ending4: , you use an electric whisk broom in a vacuum attachment thing.

Answer format: ending1/ending2/ending3/ending4