GCPM Question #229: Real Exam Question with Answer & Explanation

A marketing campaign is being built to support a new product at a utility company. The company doesn't have data on what volume to expect from the marketing campaign and the associated advertising. This data is important because it will help drive the number of employees needed in the department so customers? needs can be met. The Project Manager remembers that a similar project was by a company his company acquired. He begins to review data from this project. This is a best example of what?