The correct option is A coenocytic
The fungal body consists of a network of thread-like structures called hyphae. Some fungi have long hyphae made of continuous tubes filled with multinucleated cytoplasm, these are called coenocytic hyphae.
The hyphae in some fungi have cell walls, these are called septate hyphae.
Haustoria are special projections of parasitic fungi that penetrate the cells of their hosts to absorb nutrients.