题目解析：
【题目翻译】下面哪句话最能表达文章中突出显示的句子中的基本信息？错误的选择会以重要的方式改变意义，或者遗漏重要的信息。
A：我们现在有充分的证据证明蚂蚁有益于植物。
B：芭芭拉·本特利要求提供更多证据证明蚂蚁有益于植物。
C：1977年，芭芭拉·本特利进行了一项研究，证明所有先前的研究都是错误的。
D：证明蚂蚁有益于植物需要更多的观察和实验。
【判定题型】：根据题目问法，题目要求选择和高亮句意思逻辑都最为接近的句子，故判断本题为句子简化题。
【句子分析】这句话看似很长，实际重点内容就是We now have an abundance of the proof and since then many more observations and experiments have provided still further proof that ants benefit plants.我们现在有很多之前的证据和在1977年以后做的各种观察和实验来证明蚂蚁对植物有好处。
【选项分析】
A.与文章相符，故正确。
B.现在已经有了充足的证据了，故选项错误。
C.未说以前的研究都是错的，故选项错误。
D.现在已经有充分的证据证明蚂蚁有益于植物了，故选项错误。
Biologists once thought that secretion of extrafloral nectar has some purely internal physiological function, and that ants provide no benefit whatsoever to the plants that secrete it. This view and the opposing “protectionist” hypothesis that ants defend plants had been disputed for over a hundred years when, in 1910, a skeptical William Morton Wheeler commented on the controversy. He called for proof of the protectionist view: that visitations of the ants confer protection on the plants and that in the absence of the insects a much greater number would perish or fail to produce flowers or seeds than when the insects are present. That we now have an abundance of the proof that was called for was established when Barbara Bentley reviewed the relevant evidence in 1977, and since then many more observations and experiments have provided still further proof that ants benefit plants. 
