Photosynthesis, because the equation is using light energy and producing oxygen, like a plant, which use photosynthesis to make food.
<span>Once the enzyme binds to the specific substrate molecule, structural changes can occur in the active site to accommodate the product. This structural change lowers the activations energy and increases the rate of the reaction. The active site changes its shape until an enzyme-substrate complex is formed and activated.</span>
I would personally go with D or B