Which of the Following Is Not a Reason for a Utilization

Which of the following is not a reason for a utilization deficiency?

A) Children lack the mental resources needed to both execute a strategy and attend to the problem at hand.
B) Children may not realize that a strategy is not working for them.
C) Children may use a new strategy just for the sake of trying something new.
D) Children may not use a strategy because they tend to underestimate their abilities.