Argument: Luxville store is taking advantage of its location to reap higher profits on the same item.
Evidence: Luxville store charges more than the Oak City store for the same items.
Even without looking at the answer choices, we can see that the argument assumes the price difference is due to the store taking advantage of its location to increase profits. What about other factors like operating costs, transportation of goods, etc?
(A) The selection of specialty items in the Oak City location with the selection of specialty items in the Luxville location
Specialty item selections doesn't address why identical items have different prices => Eliminate
(B) The cost of transporting merchandise to the Oak City location with the comparable cost to the Luxville location
Good, this explains why Luxville store could be pricing the same items on a higher side. They want to cover the costs. If it costs significantly more to transport goods to Luxville, the higher prices might simply cover these additional costs rather than generate extra profit. But wait, cost of transporting
merchandise? Is it the same thing as the items argument was talking about? Or does it cover general cost of transporting all the items? If it's the latter, why should they set higher prices on a specific item? B looks good, with some flaws, but let's keep it for now.
(C) 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
Average costs at other stores could show if the price difference is not a one-off for this specific store and reflects the general market conditions in each area. If all stores in Luxville charge more than Oak City, this indicates that Green Peas is not exploiting its location but rather trying to match its costs. Keep C.
(D) The percent of average household income spent on groceries in Oak city with the comparable percentage in Luxville
Average household income spent doesn't tell us anything related to the argument. Irrelevant => Eliminate.
(E) The cost of these items in Oak City and in Luxville with the cost at other Green Peas stores throughout the state.
Other location stores are again irrelevant for comparison here. We're simply interested in Oak City and Luxville ones. Eliminate
We're stuck between B and C, I think C more directly addresses whether Green Peas is taking advantage of its location. If average costs for all stores is the same, whatever may be the reason, we know there are some costs associated with the location due to which they need to set higher prices. Moreover, we already have some flaws with B so we can discard it now.
Correct answer: (C)