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

Which is the best conclusion that can be drawn regarding the status of african-americans in the south in the late 1800s? a) african-americans made tremendous political, social, and economic advancements during the reconstruction era. b) passage of the 13th, 14th, and 15th amendments to the u.s. constitution guaranteed equal status and rights for all african-americans. c) the reconstruction policies enacted by the federal government were highly effective in african-american citizens transition to life after slavery. d) although african-americans had equal rights under federal law they were still economically, politically, and socially inferior to whites in the south during the reconstruction era.