Which of the following is a correct description of the characteristics of a "conflict of interest"?

A、Conflictofinterestbetweenasinglesubject.;
B、Conflictbetweenaparticularprofessionalresponsibilityandaparticularinterest.;
C、Thecoreoftheconflictofinterestiswhethertheengineer'spersonalinterestsarecompromised.;
D、Allconflictsofinterestresultinerrors.