Which of the Following Best Explains Why Regulating Opening and Closing

Which of the following best explains why regulating opening and closing stomata is more difficult in dry and hot environments?

A) Photorespiration becomes a bigger problem as the climate becomes colder.
B) Photorespiration becomes a bigger problem as the climate becomes warmer.
C) Photorespiration becomes a lesser problem as the climate becomes warmer.
D) Photorespiration becomes a lesser problem as the climate becomes colder.