Answer: The correct answer is Option B.
Step-by-step explanation:
Photosynthesis is defined as a process in which a plat uses carbon dioxide reacts with water in the presence of sunlight to produce glucose as a product, oxygen and water as a byproduct.
The chemical equation for this reaction follows:

By Stoichiometry of the reaction:
6 moles of carbon dioxide reacts with 12 moles of water in the presence of light to produce 1 mole of glucose, 6 moles of oxygen and 6 moles of water.
Hence, the correct answer is Option B.