Inside the chloroplast, light triggers the production of energy. That energy then goes into the <u>Calvin cycle</u> , where carbon dioxide is turned into glucose.
I don't know where you got the four answers from, but I just spent 5 minutes trying to find the answer. The energy is suppose to go from the chloroplast to the mitochondria, to mix with carbon to become glucose. It is, however, called the Calvin Cycle. My apologies if I'm just misinterpreting the question, but this is the answer I found.