Alga-like, branched, filamentous body produced by germination of spore in Funaria is called

The correct option is B primary protonema
The spore is the first cell of the gametophytic generation in Funaria. On a suitable damp habitat, a meiospore of Funaria germinates into a filamentous green alga-like structure called the primary protonema. It has green epiterranean chloronemal branches (chlornema) and non-green subterranean rhizoidal branches (caulonema). Chloronemal branches produce several buds, each of which develops into a leafy gametophore.