The 1-metre height attainable by Dawsonia moss is at the upper end of the size range reached by mosses. What accounts for the relative tallness of Dawsonia?
A) The cuticle that is found along the ridges of "leaves".
B) "Leaves" that are more than one cell layer thick.
C) Reduced size, mass, and persistence of the sporophytes, which allows gametophores to grow taller.
D) The presence of conducting tissues in the "stem".
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