It’s passive in my view
Hope it helps
The answer is B
I wasn't sure if it will be A or B but if you actually read the question carefully is asking which is the best supporting detail
B because the word very is showing how well he is smart and helping to explain.
The correct sentence is "Are Mei-Ling and us singing together today's?" We want to keep the sentences clean and using "we" wouldn't make sense.
