TOEFL Listening: TPO-TOEFL阅读TPO - S0S5L5I_4E7O4TE0N$

According to paragraph 4, what is true about light that reaches ground level? A. It reveals only the yellow and green colors animals use to signal each other. B. It reflects the yellow and green colors to make the floor as bright as sunshine C. It camouflages animals whose natural colors are yellow and green D. It consists mostly of yellow-to-green wavelengths