Look carefully at the model. During a drought, there is less water available for the plants. There is less runoff and less infiltration. During a drought, less water is returned to the atmosphere by the plants through __________, and there is a decrease in the plants' rate of ___________.

A. respiration; photosynthesis
B. photosynthesis; condensation
C. transpiration; photosynthesis
D. photosynthesis; transpiration

D. photosynthesis; transpiration