Joke Collection Website - News headlines - An English multiple-choice question

An English multiple-choice question

C

Tired as he is, he has no time to rest.

Because the concession clause must be preceded by a slogan (if it is a main table structure)

This means that although he is tired.

Please adopt it in time and continue to ask questions if you don't understand (online every day)

(* _ _ *) Wish you progress in your studies! thank you