[单项选择]在基本定型和深入发展时期，按照（）原则，《中华人民共和国招标投标法》对此前的招标投标制度作了重大改革。
A. 公开、公正和诚实信用
B. 公开、公平、公正和时机
C. 公平、公开、公正和诚实信用
D. 公平、公开和诚实信用

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