The correct answer is C. Trust me, I'm in Middle School taking High School Spanish 2. I have an 100%. Also, A. means "the plumber are nice." B. means "the aunt are a doctor." In D., well, sun isn't a form of ser. So, the answer is C. Hope I helped!
You’re right, it’s A ! the first one
1: Está
3: buscando
4: oye
5: tiene
That’s the best I could do sorry