Which of the following statements about food chain and energy flow through ecosystem is false?

(a) Food webs include two or more food chains.

(b) All organisms that are not producers are consumers.

(c) A single organism can feed at several trophic levels.

(d) Detritivores feed at all trophic levels except the producer level.

(e) The lower the trophic level at which an organism feeds, the more energy available.