(C) is the right answer.
Phycomycetes - Members of phycomycetes are found in aquatic habitats and on decaying wood in moist and damp places or as obligate parasites on plants. Ascomycetes - ....... saprophytic, decomposers, parasitic or coprophilous (growing on dung). Basidiomycetes - They grow in soil, on logs and tree stumps and in living plant bodies as parasites, e.g., rusts and smuts. Deuteromycetes - decomposers of litter