Mayflies are a type of aquatic insect that live in freshwater ecosystems and eat aquatic producers called algae. Trout are a type of fish that eat mayflies, and herons are a type of bird that hunt trout. Which distribution of organisms is necessary for this food chain to be sustainable? A. A lot of herons to keep the trout population lower B. Alot of algae and a few herons C. Equal numbers of herons, trout, and mayflies D. More mayflies than algae ​