Comparing the History of a Firm's Performance as Well as Its

Comparing the history of a firm's performance as well as its performance against competitors can benefit a firm in which of the following ways?

A) It can help determine whether the company's performance has improved or deteriorated over time.
B) It can measure whether strategies are maximizing the value that is being created.
C) It can ascertain if the firm's cost structure is in line with competitors.
D) It can establish if company resources are being used effectively.
E) All of these are benefits of comparing the history of a firm's performance as well as its performance against competitors.