What is a valid recommendation or consideration when painting APs?

You have determined the best mounting locations for APs in a given installation. The facilities manager has asked you to change the locations for several APs due to aesthetic concerns. You suggest mounting the APs in the ideal locations and painting them so they go unnoticed in the environment.

What is a valid recommendation or consideration when painting APs?
A . Always use paints with metallic dye in them to prevent potential RF propagation impact.
B . Painting APs will significantly reduce the output power.
C . Painting APs may void the product manufacturer’s warranty.
D . Most AP models for indoor environments come in a variety of form factors and colors. Painting is never recommended.

Answer: C