Đáp án C
Đảo ngữ với AS/THOUGH: adj + as + S + be ( cho dù …)
Trong câu có các mệnh đề với “as, though, no matter how, however”
-> Thường đưa: n/adj./verb/adv lên trước.
Child as he is, she knows a great deal.
Youngest as he is , he studies best in our class.
Try as he does, she will never pass it.