Answer:
C
Explanation:
I looked into it and I see no evidence of Fort Benning ever being used for (A) training naval officers, (B)manufacture weapon, or (D) to hold prisoners of war. Camp Benning was established in October 1909, and it initially provided basic training for World War I units.
There is little to no competition. Monopolies basically dominated whatever market they were in leaving little to no room for other companies.