Mosses differ from liverworts in 

A. having branched rhizoids

B. formation of sex organs as groups at the apex of leafy shoot.

C. having a juvenile gametophytic stage known as protonema

Mosses differ from liverworts in having juvenile gametophyte stage known as protonema, development of antheridia and archegonia as groups at the apex of leafy shoot, elaborate sporophyte, multicellular branched rhizoids and elaborate mechanism of spore dispersal.