P700 is photosystem I. It includes chlorophyll a 670, 680, 695, 700, Chlorophyll b, carotenoids. The active reaction center of photosystem is p700, as it absorbs light of a wavelength longer than 680nm.
P680 or the photosystem II has the following pigments: chlorophyll b, 660, 670, 680, 695, 700, phycobilins, and xanthophylls. The active reaction center, in this case, is p680 of chlorophyll a, as it absorbs the light having a wavelength shorter than 680nm.
Answer:
The answer is C - Naturalistic
Explanation:
Naturalistic theory is a philosophical and artistic view based on the belief that nothing exists beyond the natural world and all explanations come from the laws of nature. It proclaims that everything in the universe are natural and all understanding of the universe falls within scientific investigation.