Though Gymnosperms Hold the Title for Tallest as Well as Longest

Though gymnosperms hold the title for tallest as well as longest lived in terms of species representatives, angiosperms have emerged as the dominant group of seed plants on Earth today.Which statement best explains the shift toward angiosperm dominance?

A) Limited specialization of gymnosperm vasculature restricts their ability to adapt to new environments.
B) Gymnosperm seeds are less protected than those of angiosperms and are unable to withstand fluctuations in temperature and humidity.
C) Gymnosperms are wind pollinated, and the male gametophyte cannot travel great distances.
D) Unlike angiosperms, gymnosperms do not produce true fruits and provide little incentive for animals to aid in the dispersal of their seeds.
E) The life cycle of gymnosperms is complex, and requires pollinators that are slowly becoming extinct.