How would you alter this image so that the triad represented was a Gb major triad?

A. Add a flat to the root and fifth of the triad.
B. Add a flat to the root of the triad.
C. Add a flat to the root, third and fifth of the triad.
D. Add a flat to the root and a sharp to the third of the triad.
E. Make no changes.

Answer: C