Please choose the correct ending to complete the given sentence: Computers and Electronics: [header] How to be a professional skateboarder [title] Get really good on the skateboard. [step] You won't get any pro stats if you can't even kickflip. You must be able to at least know how to do every basic trick.

Ending1: [title] Get a solid throwing arm and leg. [step] You should have a good throwing arm and leg, but without them, the skate tricks won't be able to be a success. Ending2: If you've got the left hand foot, and you feel like the board is moving just right, skip the next thing until you have the right hand foot. That pretty much sums up all of the tricks you can learn, just take it aside and see what you can learn. Ending3: [title] Learn the rudiments, the backkicks, the jump tricks, etc. [step] Learn the saddle flexes, over the shoulder and overswing. Ending4: [title] Post videos online that shows any variations you can do. [step] This may be hard to accept, but no one wants to see how you rolled off a curb about 6 inches (15.

Answer format: ending1/ending2/ending3/ending4