William Has Been Trying to Solve a Particularly Thorny Problem

Multiple Choice

William has been trying to solve a particularly thorny problem he is faced with. Every time he tries to solve the problem, he starts thinking about it and framing it in the same way that failed to lead to a solution before. William is having problems with which aspect of creative problem solving?

A) avoiding mental sets
B) generating alternatives
C) adopting a questioning attitude
D) testing possible solutions
E) sleeping on it