Your classmate is trying to determine the rate of photosynthesis for a fern plant growing in his or her backyard. your classmate wants to set it up in a way for it to have a high photosynthesis rate. which of the following setups has the highest photosynthesis rate?

a. high intensity of light, low levels of carbon dioxide, high temperature level
b. medium intensity of light, low levels of carbon dioxide, extremely high temperature level
c. low intensity of light, medium levels of carbon dioxide, low temperature level
d. high intensity of light, high levels of carbon dioxide, moderate temperature level