Which of the Following Statements Does NOT Describe Characteristics of Heterospory

Which of the following statements does NOT describe characteristics of heterospory?

A) Heterospory involves production of spores on two different parts of the same plant.
B) Heterospory involves production of two different kinds of spores, one growing into male gametophytes and the other into female gametophytes.
C) Heterospory increases the chance of cross-fertilization.
D) Heterospory increases the potential for genetic variation and aids evolutionary flexibility.
E) Heterospory only occurs in vascular plants.