In an experiment, researchers compared the growth of two different plants, plant X and plant Y. The researchers maintained the plants under nearly identical conditions and observed that plant X grew faster than plant Y. The researchers also observed that the inner mitochondrial membranes of plant X had more folds than did those of plant Y. Which of the following conclusions about increasing the number of folds in the inner mitochondrial membrane is best supported by the results of the experiment

A. It increases the efficiency of photosynthesis, which results in faster cell growth.
B. It increases the surface area available for ATP production, which results in faster cell growth.
C. It increases the amount of space available for storing cellular wastes, which results in faster cell growth.
D. It increases the rate of protein transport to the plasma membrane, which results in faster cell growth.