There are two nutritional types according to the carbon sources. A: phototrophs and chemotrophs B: autotrophs and heterotrophs C: lithotrophs and organotroph D: autotrophs and organotroph

The following statement,whichis true() A: The ecosystem consists of animals, plants and microorganisms B: The ecosystem is composed of autotrophs, heterotrophs and syntrophs C: Theecosystems consist of plants, herbivores, carnivores, and scavengers D: Theecosystems consist of producers, consumers, decomposers, and abiotic environments