单选题 Stanley was ______ by what I had said and when I realized this, I apologized to him for being so tactless.
【正确答案】 D
【答案解析】[解析] 各选项的意思是：wounded使受伤，伤害；frustrated使不成功，使受挫折，令人沮丧；resented对……感到愤怒，怨恨；offended触怒，冒犯，使反感。根据句意可知，答案是D。