It can be inferred from the passage that the claim that the spiral arrangement of scale-bract complexes on an ovule-bearing pine cone is an adaptation to wind pollination would be more convincing if which of the following were true? A. Such an arrangement occurred only in wind-pollinated plants. B. Such an arrangement occurred in vascular plants as a whole. C. Such an arrangement could be shown to be beneficial to pollen release. D. The number of bracts could be shown to have increased over time. E. The airflow patterns over the cone's surfaces could be shown to be produced by such arrangements.