Answer:
The correct answer is: Problem Recognition.
Explanation:
There are five stages in the decision-making process: Problem Recognition, Search Process, Evaluating Alternatives, Selection Stage, and Evaluation of Decision. In the stage of Problem Recognition, the customer creates a need or a desire to be fulfilled by them. To get back to feeling normal, the buyer feels like something is lacking and needs to acknowledge it.
In the example, what is lacking for Jeff is a line of shirts in his company.
