According to the Introduction to the Section on Problem Understanding

Multiple Choice

According to the introduction to the section on problem understanding,

A) understanding occurs when we have evolved an external representation for an internal problem.
B) a primary criterion for understanding is the ability to represent the problem in matrix form.
C) attention is necessary for problem solution, but it is not essential for problem understanding.
D) understanding requires a close correspondence between the situation you need to understand and your own internal representation.