I wanna say A. Desert
Hope this helps!!
Because tropical levels used to be broken because temperatures hasn't varied in the years and history of global temperatures and history.
The answer is two and four hope this helps
The correct answer would be option A. Leafy gametophytes. The feature that differentiates mosses from liverworts and hornworts are the leafy gametophytes. A gametophyte is a multicellular haploid generation which is involved in the process of alternation of genes along with a diploid generation called as sporophyte.