You are presented with the question "Darkness has a negative impact on which process of a plant?" and the following answer choices: 
- slow and inefficient
 - chemical changes
 - circulatory systems
 - most organisms
 - fossil fuels
 - Abnormal cell growth
 - deoxyribonucleic acid
 - Oxygen production

Now knowing that darkness has a negative impact on photosynthesis and light is necessary for photosynthesis, a process that produces oxygen, choose the best answer.


 

        Oxygen production 