After the Civil War, blacks (African Americans) showed a thirst for knowledge (Option A).
The period following the Civil War, known as the Reconstruction era, saw significant efforts to establish schools and educational opportunities for newly freed African Americans. Many African Americans were eager to learn and sought education as a means to empower themselves and improve their lives. While there were challenges and obstacles, such as limited resources and discriminatory practices, African Americans demonstrated a strong desire for formal learning and made significant strides in pursuing education.