When Marty Attended His First New Product Development Class, He

When Marty attended his first new product development class, he realized that he ought to have an AutoCAD type software program to enable him to do proper designs or else he would be unable to do his assignments. In which stage of the consumer
Purchase decision process was Marty when he made this realization?

A) problem recognition
B) alternative evaluation
C) purchase behaviour
D) information search