What Is the Potential Byproduct of Promotional Markdowns

What is the potential byproduct of promotional markdowns?

A) It is another way to achieve a break-even analysis.
B) The category can get an overview by optimized markdowns.
C) Management can benefit from the traffic flow of promotions.
D) The increased in-store traffic leads to the purchases of other non-sale items.
E) Buyers can better understand the buys they've made by how the markdowns progress.