Which of the Following Was a Characteristic of Cistercian Architecture

Which of the following was a characteristic of Cistercian architecture and design?

A) Cistercian churches made widespread use of sculpture and statuary to call attention to the glory of God.
B) Cistercian monasteries were divided into two halves-one half for the monks and the other half for the lay brothers.
C) Cistercian churches featured vaulted ceilings and impressive stained-glass windows.
D) Cistercian churches featured dark windowless interiors in accordance with the order's emphasis on austerity and simplicity.