Which of the following statements is TRUE regarding leptosporangia?
A) Leptosporangia are a unique trait of whisk ferns and horsetails, and do not occur in polypod ferns.
B) Leptosporangia enhance the dispersal of fern spores into the environment.
C) Leptosporangia enhance reproductive success by protecting fern spores from herbivores.
D) Leptosporangia likely impeded the evolution of polypod ferns, because these structures limit the number of spores that can be introduced into the environment.
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