Answer:
The correct answer is: "They cared for the sick and taught children."
Monasteries were religious communities where monks lived and dedicated their lives to prayer, study, and manual labor. They were centers of learning and education, where they taught children and copied and preserved ancient manuscripts. Monks also provided medical care and tended to the sick and needy. Hard physical labor was considered a form of spiritual discipline, so monks often did manual work themselves rather than relying on servants. Military conquests were not a primary concern of monastic life.