What happens next?

How to fist bump
Ball your hand up into a fist.
Press the tips of your fingers into your palm so that your hand makes a fist. This will be the position that you keep your hand in for the bump.

Available choices:
a). Hold the fist up high enough to extend your palm to one side. Bend your wrist so that both fingers are pointing out, with the whites of your knuckles showing.;
b). Put your fist out in front of you. Place your fist in front of your body with your knuckles facing up.;
c). Make sure your palm looks nice and flat. Ideally, this hand should be neither thicker nor thinner than your fist.;
d). Whether you're with friends or with an opponent, the fist looks like a punching bag in a gym. The knuckles, the tips, and thumb look like a regular ring finger.;
b).