The correct option is B upright
The pyramid of energy is always upright because when energy flows from one trophic level to the next trophic level, than was actually paid into it; some energy is always lost as heat at each step. So, the lowest level has the maximum value and highest , lowest value in terms of calories. Each bar in the energy pyramid indicates the amount of energy present at each trophic level in a given time or annually per unit area.