Answer: The right answer is the B) It was late, so I went to bed.
Explanation: Just to elaborate a little on the answer, it can also be added that commas are used to separate independent clauses, like the ones in the example—"It was late" and "I went to bed—when they are linked or joined by a coordinating conjunction such as <em>so</em>. When that's the case, the comma must be placed BEFORE the conjunction. The other alternatives place the comma in inappropriate places (after the conjunction and after the personal pronouns).
The portrayal of the woman in this stanza expresses how some Hindu or Muslim communities would view this practice; it contrasts the speaker's views expressed in the final stanza.