You are driving on a narrow, two-lane road with no shoulder, and a bicyclist is riding in the middle of your lane, blocking you. You should
(a) Flash your high beam headlights several times, to signal the bicyclist that you want them to move over.
(b) Tap your horn to let the bicyclist know you are there.
(c) They must move to the right-most part of the roadway and let you pass.
(d) Treat the bicyclist like a slow-moving vehicle. The bicyclist can legally use the full lane even when moving much slower than the speed of traffic.