At times, worrying is a normal, response to a difficult event or situation – a loved one being injured in an accident, for example.
A. effective
B. individual
C. inevitable
D. unfavorable
网友回答
A. effective
B. individual
(答案→)C. inevitable
D. unfavorable
解析：考查词义辨析。 effective ，有效的，individual个人的，inevitable不可避免的，unfavorable不支持的，根据句意担忧是一种正常的，不可避免的反应。故选C。