The correct option is C agraharas
The Satavahanas promoted education through schools, which were called agraharas. These agraharas were settlements of brahmins which took care of the affairs of the area including education. These agraharas soon became the most important educational institutions in southern India during the Medieval Period. Talagunda (Sthanakundur) in present-day Shivamogga district, was one of the oldest and most important educational centres during this time.