If the flow of energy in an arctic ecosystem goes through a simple food chain, perhaps involving humans, starts from seaweeds to fish to seals to polar bears, then which of the following could be true?

A. Polar bears can provide more food for humans than seals can.
B. The seaweed can potentially provide more food for humans than the seal meat can.
C. The total biomass of the seaweeds is lower than that of the seals.
D. Seal populations are larger than fish populations.
E. None of the above are true