The answer to this question is option C or "the leaves." The major site of photosynthesis in a plant is where the chloroplasts are located because it contains chlorophyll which is where photosynthesis takes place, chloroplasts is in all the green parts of a plant stem, leaves, and even the branches but it takes place mainly in the leaves of a plant because there is more leaves then roots or branches.
I believe the correct term to fill in the blank would be pain. <span>Phantom limb sensations and other experiences of amputees show that the brain can produce pain in the absence of normal sensory input. Hope this answers the question. Have a nice day.</span>