Which one of the following statements about trend analysis is NOT correct?

A) This benchmark is based on a firm's historical performance.
B) It allows management to examine each ratio over time and determine whether the trend is good or bad for the firm.
C) The Standard Industrial Classification (SIC) System is used to identify benchmark firms.
D) All of the above are true statements.

Ans: C) The Standard Industrial Classification (SIC) System is used to identify benchmark firms.