In the Choir at Saint-Denis,Abbot Suger's Builders Achieved an Open,flowing

Multiple Choice

In the choir at Saint-Denis,Abbot Suger's builders achieved an open,flowing space surrounded by walls of stained glass by __________.

A) using pointed arches,ribbed groin vaults,and external buttressing
B) creating a short triforium supported by exterior flying buttresses
C) enclosing the choir with a flat expanse of load-bearing stone walls
D) constructing a tall nave arcade supported by heavy compound piers