B is the correct answer.
While the Indus Valley has gotten more attention in recent years, it is not considered one of the three classical civilizations.
Answer:
Texas During the Civil War: Texas contributed 135 officers to the Confederate army as well as a huge amount of military supplies and provisions. Civil War: Sacrifice, Valor, and Hope: Gov. Sam Houston lost his office when he refused to take an oath of allegiance to the Confederacy.
