The result of the survey shows _____ successful people have in common is _____ they all have confidence. [ ]

A. whether; that

B. what; that

C. what; why

D. which; that

十七大报告指出，要把预防腐败工作引向深入，就必须加强对权力的监督和制约，采取有效措施防止权力的滥用。为此，我们必须

①不断创新和完善预防腐败的各项制度，逐步实现预防腐败工作的规范化和法制化 

②加强立法工作，提高立法质量 

③加强行政执法队伍建设，严格执法、公正执法、文明执法 ④保障广大人民的选举权、知情权、参与权、监督权

A．①②③④

B．①②

C．②③④

D．①②④