The correct option is B Inverted
The pyramid of number is a graphical representation of the number of individuals at each trophic levels. It is generally upright as a maximum number of organisms occurs at the producer level, followed by less number of organisms at successively higher trophic levels. However, a single large-sized tree can provide food to several herbivores e.g., birds, squirrels etc. which support a few carnivores. Such a pyramid of number is always inverted. Therefore, the correct answer is option B.