S2 문장의 [______]에 들어갈 단어는?

난이도 고난도 · 힌트를 덜 열수록 높은 점수 (현재 5점)
Even though there is good reason to consider a dog a sentient being capable of making choices and plans ― so that we might suppose 'it could have conceived of acting otherwise' ― we're unlikely to think it is wicked and immoral for attacking a child.
[______] responsibility is not some universal concept like entropy or temperature ― something that applies equally, and can be measured similarly, everywhere in the cosmos.