Flagpole Army Base in Oregon and Klondike Army Base in Alaska are similar bases with similar duty loads. Despite the similarities, Klondike always has had more men than Flagpole has. Clearly, each soldier at Klondike must have to perform a smaller share of the duties, and therefore soldiers at Klondike must have more free time than do soldiers at Flagpole.

In evaluating the argument, it would be most useful to know which of the following?

A:Whether those recruits who are in a position to choose, choose Flagpole over Klondike.

B:Whether the officers administering the Flagpole and Klondike bases have had similar training.

C:Whether the morale level at Klondike is higher than the morale at Flagpole.

D:Whether regular furloughs from Klondike are longer than furloughs from Flagpole, to account for added travel time.

E:Whether similar numbers of soldiers are stationed at comparable bases throughout the country.