If I remember the story correctly it should be 1&2
<span>She was sick of segregation
</span>
Ming and her sister, who is home from college for spring break, organized a bake sale to benefit the victims of the fire" (C).
We should put the comma around the unnecessary information. In this case, the unnecessary information is that Ming's sister is home from college for spring break. In other words, we could eliminate it without changing the meaning of the sentence. If we did this, the sentence would be "Ming and her sister organized a bake sale to benefit the victims of the fire."
