(PLEASE ANSWER WORTH 50 POINTS)This is an adaptation that benefits plants by
A) increasing the flow of liquid water into leaves,
which increases the rate of food and oxygen
production
B) regulating the flow of water vapor out of leaves,
preventing excess water loss by the plant
C) increasing the flow of oxygen molecules into the
leaves, which increases the rate of
photosynthesis
D) preventing the flow of carbon dioxide into the
leaves, which would reduce the rate of
respiration