Which of the following is a need-satisfaction question Jeff can ask the merchandising manager?

A) If I understand you, knowing only the song playing when the customer reaches the register doesn't take into account patterns of shopping, purchasing triggers, or waits in a checkout line?
B) Do you have point-of-purchase software that allows you to track time and amount of purchase?
C) How does your current music provider track the correlation between songs and purchases?
D) Would it help you to be able to track songs as customers browse and shop, as well as tracking mixes that lead to the actual purchase, to be able to mix songs for better sales?
E) Does knowing the song playing at the moment the customer gets to the register give you the information you really need to create an effective mix?

D