The sentence that is punctuated correctly is sentence d.
Explanation:
Not only does it sound right when you physically say it, but it is grammatically correct. Looking at the other sentences, you can see how in a, there are no commas after rain. In b, there are too many commas. In c, there shouldn't have been a comma before and. Therefore, the only logical response would be d.
<span>The central idea of the paragraph is most clearly: hierarchical
thinking is rarely accurate. The paragraph states that one’s opinion about
subordinates changes as soon as they go higher on hierarchical ladder which is wrong
as our position in hierarchy doesn’t always define our work and effort and
surely it doesn’t define us as a person. </span>
