Answer:
D- Multicellular
Explanation:
Fungi are multicellular organisms with exception of yeasts. Yeasts are special type of ascomycetous fungi which characteristically do not produce mycelia, therefore they are unicellular. Fungi is not a single organism, no than plant or animal is a single organism. The fungi taxa contains many multicellular and unicellular organisms.
Sorry for that I was thinking a whole another question
