Correct option is B
· Incandescent lap has the best color rendering index (CRI).
· CRI is a common reference source used to measure the 'real' color of an object compared to either incandescent light or daylight.
· A measure of the ability of a light source to reflect 'naturally'.
· Color rendering index (CRI) is measured as a number between 0-100.
· At 0 all colors are equal. A CRI of 100 reflects the true colors of the object.
· Incandescent and halogen light sources have a CRI of 100.
· A light source with a CRI above 90 is considered excellent.

