How does a stained glass window alter the white light that passes through it?

reflecting or refracting?

A diffracting different wavelengths of light.
diffracting different wavelengths of light.

B reflecting different wavelengths of light.
reflecting different wavelengths of light.

C refracting different wavelengths of light.
refracting different wavelengths of light.

D absorbing different wavelengths of light.

C refracting different wavelengths of light.