Protection against intense light is provided by carotenoids to:

Explanation

Option D is correct because carotenoids are versatile pigments that provide protection against intense light across different systems. In plants, they absorb excess light energy to stabilize chlorophyll a and b, preventing free radical formation and ensuring optimal photosynthesis. In humans, carotenoids like lutein and zeaxanthin filter out harmful UV light, protecting the eyes. While options A, B, and C are individually correct, only option D reflects the full range of carotenoid protection.