A research scientist designs an experiment to measure the inputs and outputs of photosynthesis, by mass, for a representative plant over a certain time. The scientist’s predictions for the results are shown in the table. Inputs and Outputs of Photosynthesis
Mass (g) Role
Carbon dioxide (CO2) 264 input
Water (H2O) 108 input
Sugar (C6H12O6) 180 output
Oxygen gas (O2) 192 output

If the scientist's predictions are shown to be accurate, then which conclusion about photosynthesis do they support? (HINT: Apply scientific principles such as the Law of Conservation of Mass.)
A. All of the matter in water is converted into oxygen gas.
B. All of the matter in carbon dioxide is converted into oxygen gas.
C. All of the matter in carbon dioxide is converted into sugars.
D. Some but not all of the matter in carbon dioxide is converted into sugars.