Answer:
C. To keep credit charges from the bank low
Explanation:
Given a graph of charges from the bank on different credit cards, you want to know why customers would be asked to use their Barnes preferred customer card for charges below $400.
Graph
The graph shows charges to the store by the bank are lower for use of the Barnes preferred customer credit card versus an MCVS credit card, but only for charges less than $400.
Hence, if the store wants to minimize what it has to pay the bank when its customers use a credit card, it makes sense to ask the customer if they'd like to use the Barnes preferred customer card for lower-value purchases.
The likely reason for the question is to keep credit charges from the bank low, choice C.
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