Answer:
D. High intensity of light, high levels of carbon dioxide, moderate temperature level
Step-by-step explanation:
Photosynthesis is the process by which plants make their own food.
photosynthesis to happen, there must be light, carbon dioxide and chlorophyll.
For the experiment to go through well, then the class mate has to provide sufficient supplies of requisite elements for photosynthesis.
Therefore enough supply of light, water, carbon dioxide and chlorophyll.