GRE Reading Comprehension: ETS-GRE阅读ETS - N5LUUB1_S94HIQ157

The passage best supports which of the following inferences about the fitness of honeybees? A. Reproduction diminishes any individual honey-bee's fitness. B. An individual worker's fitness can be maintained without the individual herself reproducing. C. A hierarchy of stronger and weaker individuals among the worker bees determines which individuals will reproduce when a queen dies. D. While a queen reigns, the fitness of the worker bees is increased and that of the drones is diminished. E. Fitness encourages worker bees to hatch honeybee eggs without regard for the relatedness of the young to the "parent".