找到答案的依据在于稳重这样一句话：

The predator is searchingly aggressive, inner-directed, tuned by the nervous system and the adrenal hormones, but aware in a sense closer to human consciousness than, say, a hungry lizard’s instinctive snap at a passing beetle.

于是，正确答案为选项 (C) make a distinction between higher and lower levels of consciousness

其实，许多同学依然无法通过这句话与选项产生联系，感觉找不到 a distinction，也找不到 higher and lower levels of consciousness。其实，我们首先把这句话简化到核心： The predator is … aware in a sense closer to human consciousness than, say, a hungry lizard’s instinctive snap at a passing beetle，然后我们发现句子的核心是一个比较级。closer to … than …那既然是比较，那是不是 a distinction（差别/区分）就出来了？

接下来，我们看到比较的两个主体：predator vs lizard。比较的方面是：与 human consciousness（人类意识作为高级意识）有多 close （靠近）。那么，很显然，哪个closer to（更靠近于） human consciousness（人类意识）, 哪个就是higher levels of consciousness，对应的就是 lower levels of consciousness。