Which of the following statements is correct concerning the frame of mind that reporters should have about information provided by sources?

A、Reportersshouldkeepahealthyskepticismabouttheaccuracyofinformation.;
B、Reportersshouldcheckoutallinformationtomakesurethatitisaccurate.;
C、Reportersshouldnotacceptanyinformationonfacevalue.;
D、Alloftheabove.