The correct answer is C. Every other line of each stanza shares a rhyme.
In each stanza, the first and third lines rhyme with each other, and the second and fourth lines rhyme with each other. For example:
1st stanza: "night" (line 1) rhymes with "might" (line 3), and "right" (line 2) does not rhyme with them but lines 2 and 4, don't rhyme either (which is line 4 ending with "bar").
2nd stanza: "bazaar" (line 1) rhymes with "bar" (line 4), while "far" (line 2) does not rhyme with lines 1 and 4, and line 3 does not rhyme with those either.
So each stanza maintains a pattern where every other line rhymes.