题目解析:
这一题需要结合前文的假设来判断,在第三段中他们就假设:They predicted that the colonies of aggressive species would show regular distributions, while those of nonaggressive species would show random or closely grouped (clumped) distribution. 而阴影的这个细节及其所在的这一段都在说:4个巢穴规则样式,其蜜蜂就有攻击性; 1个巢穴随机样式, 其蜜蜂就没有表示出攻击性; 即肯定了前文的预测。所以对应B选项。