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

How to remove a tub faucet
Look on the underside of the faucet to locate the screw.
Slip-on spouts will have a set screw under the spout, near the tub wall. The set screw secures the spout onto the water supply pipe.

Choices:
a). Feel and look at the faucet for a screw hole on the underside of it. If there is no screw under your faucet, you probably have a screw-on faucet.;
b). Use a small razor blade (kg) or any other flat edge tool to mark a notch or recess on the underside of the spout. An unused knife will work for removing the screw head from the tub.;
c). Remove it with a blunt, easily removed screwdriver. If a screw is underwater, do not attempt to remove it with a knife or a heavy object.;
d). This screws the faucet into place. If your plumbing kit does not have a set screw, you should still twist a corner of the faucet to take it out.;
a).