Answer:
C. Monosaccharide
Step-by-step explanation:
Glucose is an carbohydrate molecule with the chemical formula, C6H12O6. It is one of the simplest form of carbohydrates called MONOSACCHARIDE OR SIMPLE SUGAR. This means that it has a single ring in its chemical structure. Other monosaccharides are fructose, galactose etc.
As stated in this question, Glucose is produced as energy source during the process of photosynthesis in plants i.e. the combination of carbon dioxide (CO2) and water (H2O).