While most African Americans serving at the beginning of WWII were assigned to non-combat units and relegated to service duties, such as supply, maintenance, and transportation, their work behind front lines was equally vital to the war effort.
Sam Houston was a great political figure. He got Texas independence on the day of the Battle of San Jacinto. He was Governor of both Tennessee and Texas. He was a U.S. Senator and a U.S. Congressmen. He was a frontiersmen, statesmen, great orator, and accomplished military man. He is one of the founding fathers of Texas and a great Indian Rights Supporter.
FYI: He started the saying “Remember the Alamo!.
The answer is A, natural selection.