Nicole is spending this week working alongside Ed$,$ a senior manager at the company. She has been instructed to follow his every move, and she soon discovers that Ed not only has years of experience but also a great deal of knowledge$$so much so that, as she comes to realize over the course of the week, he does not even know how much he knows. This situation is best described as an example of

Group of answer choices

learning.

expertise.

behavior modeling training.

tacit knowledge.

performance$-$prove orientation.