PLEASE HURRY TIMED Cells are open systems that exchange matter and energy with their surroundings. Which of the following best explains why plant cells require sunlight to make organic compounds, according to Gibbs’s theory of free energy? a) The energy input required for making organic compounds equals the usable energy output of respiration.

b) The energy required from sunlight to start photosynthesis is less than the energy needed from another energy source.

c) The energy required to make organic compounds is always greater than the potential energy stored in these compounds.

d) The energy that a plant absorbs from sunlight is spontaneously transformed into chemical energy because the outputs are more stable.