Which version of the sentence has correctly placed commas?

Ming and her sister who is home from college, for spring break, organized a bake sale to benefit the victims of the fire.

Ming, and her sister, who is home from college for spring break organized a bake sale to benefit the victims of the fire.

Ming and her sister, who is home from college for spring break, organized a bake sale to benefit the victims of the fire.

Ming and her sister who is home from college for spring break, organized a bake sale, to benefit the victims of the fire.