题目选项分析

The Green Peas Grocery Store in the remote wealthy enclave of Luxville charges more than the Green Peas Grocery Store in Oak City charges for the same items. Clearly, on any given item, the Green Peas grocery franchise is taking advantage of its location in Luxville to reap higher profits on that item.

In evaluating the argument, it would be most useful to compare

【选项】the average cost of the same or comparable items at other grocery stores in Oak City with the average cost at other stores in Luxville