Beta-carotene and lutein are carotenoids. What is the primary color that they absorb (and therefore not reflect)

Carotenoids absorb light in the blue-green and violet region

Explanation:

Carotenoids are organic pigments of yellow, orange, and red colour that are produced by plants and algae, bacteria, and fungi. Such organic pigments give the characteristic colour to pumpkins, corn, tomatoes, shrimp, and lobster. Carotenoids are also called as tetraterpenoids.

Beta-carotene and lutein are carotenoids. Carotenoids absorb light in the blue-green and violet region.