Beverly Is Assessing the Results of a New Product Launch

Beverly is assessing the results of a new product launch of a series of e-books for her bookstore. When evaluating the results, Beverly will likely consider all of the following EXCEPT

A) why it took her so long to consider the new product line.
B) whether the e-books are generating the expected level of profit.
C) whether the e-books are generating the expected level of sales.
D) whether her customers are interested in the new books.
E) whether the e-books function as expected.