Only plants need cell walls, animals do not. Cell walls help maintain cell shape in plants, while the cell membrane helps support animal cells.
It is the Glucose. Glucose is a basic sugar with the atomic recipe C6H12O6. Glucose courses in the blood of creatures as glucose. It is made amid photosynthesis from water and carbon dioxide, utilizing vitality from daylight. It is the most imperative wellspring of vitality for cell breath.
To my knowledge, the answer is B