Participants' Use of "Hill Climbing" Is Evident in That

Participants' use of "hill climbing" is evident in that

A) participants solve problems more quickly if they can divide the problem into smaller subproblems.
B) problem solving often gets stalled if a problem requires the participant to move briefly away from the goal state in order (ultimately) to reach the goal.
C) participants are disrupted in their problem solving if they are asked to think out loud as they proceed.
D) participants are often confused unless the problem's path constraints are clearly specified.