Which of the Following Interpretations Are Consistent with Scenario B

Which of the following interpretations are consistent with Scenario B?

A) People who spend more time shopping buy more if they are old than if they are young.
B) When there is a long time to shop, young shoppers outspend old shoppers; but if there is only a short time to shop, age makes no difference.
C) When older people shop quickly, they know what they want and spend a lot; when they shop slowly, they usually do not spend as much.
D) Older shoppers enjoy browsing (which means taking a long time) and when they take a long time, they end up purchasing a lot more than young shoppers.