Which of the following is true about plants and cellular energy?

a. plants use light energy to produce food molecules during cellular respiration, and obtain cellular energy from the bonds of these food molecules during photosynthesis.
b. plants use light energy to produce food molecules during photosynthesis, and obtain cellular energy from the bonds of these food molecules during cellular respiration.
c. plants can both use light energy to produce food molecules and obtain cellular energy from the bonds of these food molecules during photosynthesis.
d. plants can both use light energy to produce food molecules and obtain cellular energy from the bonds of these food molecules during cellular respiration.