Which of the following statements supports the claim that plants use a negative feedback system to conserve water during hot, dry weather? A. The rate of photosynthesis falls off as the size of stomatal pores decreases.
B. The size of stomatal pore openings decreases as a function of humidity and soil hydration.
C. Stomata open and close in response to light signals and are sensitive to blue light in particular.
D. Stomata are located on the underside of leaves in plants that inhabit arid environments.