Which of the following most logicallycompletes the argument?

　　By competing with rodents for seeds, blackants help control rodent populations that pose a public health risk. However, avery aggressive species of black ant, the Loma ant, which has recently invadeda certain region, has a venomous sting that is often fatal to humans. Therefore,the planned introduction into that region of ant flies, which prey on Lomaants, would benefit public health, since.

　　(A) ant flies do not attack blackants other than Loma ants

　　(B) Loma ants are less effectivethan many bird species in competing with rodents for seeds

　　(C) certain other species of blackants are more effective than ants in competing with rodents for seeds

　　(D) the sting of Loma ants can alsobe fatal to rodents

　　(E) some pesticides that could beused to control Loma ants are harmful to the environment

　　【翻译】

　　下列哪项最符合逻辑地将以下论证文章补充完整?

　　由于黑蚂蚁与啮齿类敌人竞争获得种子，它们帮助控制对公共健康构成风险的啮齿动物数量。然而，黑蚂蚁中的一种非常具有进攻性的L蚂蚁最近入侵某一个地区，它们的毒刺对人类来说往往是致命的。因此，将捕食L蚂蚁的蚁蝇引进到该地区的计划将有利于公众健康，因为。

　　(A) 蚁蝇不攻击除L蚂蚁之外的黑蚂蚁

　　(B) 在与啮齿类敌人竞争种子方面，L蚂蚁不如许多鸟类有效

　　(C) 与啮齿类敌人竞争获得种子方面，黑蚂蚁的某些其他物种更有效

　　(D) L蚂蚁的毒刺对于啮齿动物来说也可以是致命的

　　(E) 一些可以用来控制L蚂蚁的杀虫剂对环境有害