David's marketing research returned the finding that customers were staying away from his bookstore because of a lack of services like gift cards, return policies, and special orders. david was shocked. "nobody ever asks about that stuff! if it were that important, people would ask about it." david is likely suffering from a( gap.

Knowledge

Explanation:

Based on the information provided within the question it seems that David is most likely suffering from a Knowledge Gap. This is a lack of information within a certain topic. Since David does not seem to have the information that customers wanted services like gift cards, return policies, and special orders, he was not able to relay this information to the company in order for them to make an informed decision/change, and was why he was shocked when he found out.

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