The author of the passage is primarily concerned with discussing A. the current debate on whether the morphological attributes of wind-pollinated plants are evolutionary adaptations B. the kinds of airflow patterns that permit wind-pollinated plants to capture pollen most efficiently C. the ways in which the reproductive processes of wind-pollinated plants are controlled by random events D. a recently proposed explanation of a way in which wind-pollinated plants reduce pollen waste E. a specific morphological attribute that permits one species of wind-pollinated plant to capture pollen