Which of the Following Best Illustrates the 80-20 Principle

Multiple Choice

Which of the following best illustrates the 80-20 principle?

A) We are a hardware wholesaler,and 20 percent of our sales volume comes from building supply dealers.
B) Fifteen percent of our customers account for 65 percent of our sales volume.
C) Industry sales declined 10 percent last year.
D) Our company's sales increased 18 percent last year.
E) Last year our volume was up 10 percent,but our market share declined 4 percent.