Because Miranda was gay and her mom was not supportive
I'd have to know the story to answer it 100% correct... but one answer could be "A" if marjorie is not socially accepted herself. But it could also be "D" if Bernice was tempted not to cut her hair.
The answer is B because it puts a coma in the correct spot to pause between the first half of the sentence and the second. The others either randomly placed a period, using the wrong word choices, or made it a run on sentence. :)