Kaplan and Simon's Experiment Presented Different Versions of the Mutilated

Multiple Choice

Kaplan and Simon's experiment presented different versions of the mutilated checkerboard problem.The main purpose of their experiment was to demonstrate that

A) people arrive at the solution to an insight problem suddenly,but proceed more methodically towards the solution of a non-insight problem.
B) a person's mental set can hinder finding a solution to a problem.
C) people often have to backtrack within the problem space to arrive at an answer to a problem.
D) the way the problem is represented can influence the ease of problem solving.