两篇阅读短文求助。蜜蜂繁殖/ 器官移植。来源吴中东老G真题

我爱瓜小妖UID：3014785

第一篇 蜜蜂繁殖

Typically the queen honeybee is mother to all the bees in a hive; after mating with several male drones from other colonies, she lays fertilized eggs that develop into all-female worker bees and lays unfertilized eggs that become all-male drones. When a queen dies, workers often lay unfertilized eggs that hatch into drones. Yet workers rarely reproduce while a queen reigns.

According to natural selection theory, a worker would enhance her fitness—or ability to propagate her genes—by hatching her own eggs in addition to or in place of the queen’s. But a typical worker’s fitness would be diminished if other workers’ sons, who have less genetic material in common with the worker, supplanted the queen’s sons (the worker’s brothers). Researchers, testing the hypothesis that workers usually somehow block each other’s attempts to reproduce, put unfertilized eggs laid by workers and by the queen into a hive. Other workers quickly devoured the workers’ eggs while leaving the queen’s eggs alone.

问题：The author refers to the experiment described in lines 16-19（上文中加粗加线斜字） in order to
(A) explain how worker bees are prevented from mating with drones
(B) explain how worker bees hatch and nurture the queen’s young
(C) demonstrate the universality of natural selection
(D) show that worker bees are capable of thwarting each other’s attempts to reproduce
(E) provide a model of daily life in a typical honeybee hive

吴中东答案：C
理由：D是实验的researcher的目的，而不是作者提及这个实验的目的。
NG阅读大全答案：D

有些晕。第二段首句“According to natural selection theory, a worker would enhance her fitness—or ability to propagate her genes—by hatching her own eggs in addition to or in place of the queen’s.” 不太懂。
这里的natural selection theory是对应着，“worker enhance her fitness”，还是对应着“hatching her own eggs”？？
如果是前者，觉得吴中东的答案更有道理。

请大家帮忙看一下。多谢。

我爱瓜小妖UID：3014785

额。第二篇器官移植，刚刚自己又看了一遍搞懂了。就不发上来了。

沛芝东欧控UID：3532576

我感觉是答案错了 应该是d

natural selection theory这个理论的总体意思是：worker enhance her fitness是目标，方法是hatching her own eggs