Which Commandant was promoted to General during his tenure?

• A. Samuel Nicholas
• B. William Ward Burrows
• C. John A. Lejeune
• D. Archibald Henderson

Answer: (D)

The idea being tested is recognizing a historic milestone in Marine Corps leadership and rank structure: which Commandant achieved the rank of General during his time in that role.

Archibald Henderson, who led the Marine Corps for a long stretch (from 1820 to 1859), sits as the standout because his tenure includes the period when a General officer rank was established and he himself was promoted to General while still Commandant. This made him a landmark figure—the first Marine Corps officer to hold that general officer status while serving as Commandant. The other listed Commandants are notable in their own right, but their tenures do not share that specific combination of leadership duration and promotion to General during service in that role.