A. help us to live up to our full development. B. enable us to understand ourselves better. C. block our chances for a successful life. D. have nothing to do with lack of self-esteem. 参考答案:C 答案解析:主旨题。根据全文可知,有害羞感的人具有一些不良的心理和性格,会影响自己的生活,阻碍自己走向成功。所以[C]正确。