To be honest, I think it might possibly be the third option. I hope this helps.
Significant. Fractional sounds like "fraction," which is typically meaning a value less than one, but not quite zero. AKA, very small.
The opposite of a very small change would be a very big change. Which is what a significant change is.
Hi, this line has 9 feet, and this would be an "anapest" - u u / u u / u u /, "u" being unstressed syllable, and "/" being stressed. Here the only stressed syllables are: "light", "sil-", and "moon". The rest of them are unstressed.
<u><em>The Answer is "Nature is indifferent to humans."</em></u>
