As a transverse pulse moves to the right on a taut rope, a small bead attached to the rope at a fixed location is observed. Which motion of the bead is most consistent with the behavior of the rope segments as the pulse passes?
(a) It is carried along with the pulse to the right at the same speed so that, after the pulse has passed, the bead is farther down the rope.
(b) It moves upward to a maximum displacement, then downward past equilibrium to an equal displacement, and finally returns to its original position.
(c) It rises to a maximum height above the rope, returns exactly to the equilibrium position, and then remains at rest without ever moving below the equilibrium line.
(d) It oscillates forward and backward along the rope while remaining on the equilibrium line.