This is a test of commonsense with single/multi-choices. Complete the next sentence:

How to fix vape pen wires
Unscrew the vape pen heating chamber.
The top part of the pen is the mouthpiece, or tank. Twist it counterclockwise to remove it.

pick from the following.
(A). Unscrew the pen points by twisting them counterclockwise and then unscrewing them. Put water in the pen tank until the pen is completely filled, depending on your model.;
(B). Use a plumber's wrench to loosen the tank lid over the pen. Use 2 teaspoons rubbing alcohol and a bullet-head screwdriver to remove the top part of the pen.;
(C). Next, you will see the heating chamber with the coil inside of it. Pull it off the same way, leaving the wire coil in place.;
(D). After it's removed, twist it clockwise to release the screw that holds the pen tube in place. Place the pen tube into a polyurethane glass case.;
The answer is:
(C).