In a Particular Layer of Rock, a Number of Fossilized

Multiple Choice

In a particular layer of rock, a number of fossilized ferns are found, but no fossilized mosses are found. What conclusions can be drawn from this finding?

A) The soft tissues of mosses may not have fossilized as readily as the more decay-resistant tissues of ferns, so it is difficult to draw any conclusions from this limited sample.
B) Mosses and ferns did not coexist in the same environment.
C) There are fewer species of moss than ferns.
D) Ferns evolved earlier than mosses, so it is not surprising to find a layer with only ferns and no mosses.
E) Ferns decompose more rapidly than mosses and thus are more likely to fossilize.