What Statement Best Describes the Use of Colored Glass in Churches

What statement best describes the use of colored glass in churches during the Byzantine and the Gothic periods?

A) Byzantine and Gothic glass transformed and colored the light that passed through it.
B) Byzantine and Gothic glass served to cover the walls of the church.
C) Byzantine glass reflected light while Gothic glass filtered the light that passed through it.
D) Byzantine glass absorbed the light while Gothic glass let light pour into the church.