【正确答案】 C

【答案解析】解析：让步状语从句题。as既可引导让步状语从句，又可引导原因状语从句，引导让步从句时可把让步成分提前，构成倒装形式。本题从句与主句不构成因果关系，故排除B项As he was badly wounded、D项As badly wounded(省略了he was)。让步从句中放在as前的必须是整个表语部分，A项Wounded as he was badly语序不正确，故答案为C项Badly wounded as he was。