I am about what I say because careless remarks are likely to hurt others’ feelings.A. abs

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A. absurd
B. concerned
C. guilty
(答案→)D. cautious
解析：absurd荒唐的；可笑的；concerned担忧的；关心的；guilty有罪的；内疚的；cautious谨慎的。be cautious about对……谨慎。句意：我谨慎对待我所说的话，因为粗心的评论有可能伤害别人的感情；