In an experiment demonstrating the evolution of oxygen in $Hydrilla$,sodium bicarbonate is added to water in the experimental set-up. What would happen if all other conditions are favourable?

• A
  Amount of oxygen evolved decreases as the availability of carbon dioxide increases.
• B
  Amount of oxygen evolved increases as carbon dioxide in water is absorbed by sodium bicarbonate.
• C
  Amount of oxygen evolved decreases as carbon dioxide in water is absorbed by sodium bicarbonate.
• D
  Amount of oxygen evolved increases as the availability of carbon dioxide increases.