Which of the following statement is correct ?
A. In mosses asexual reproduction takes place by green, multicellular buds called gemmae
B. The sporophyte of bryophytes is differentiated into food, seta and capsule and it is a free-living generation
C. Protonema is a green, creeping, branched and filamentous stage in mosses, which develops directly from a spore.
D. The liverworts have an elaborate mechanism of spore dispersal.
