OG10 阅读 Q46

正确答案为C。寻找一个选项，支持题干信息：seeds present in fields plowed at night are exposed to some amount of light. 即晚上犁的地里面的种子某种程度上也有光照，所以对应到C选项，原文43-47行：under these conditions指代就是40行提到的night，46行继续说到this illumination is below the threshold，这个光照距比最低值还低。