Correct way to report an accident ( )

A、Theaccidentaroundyouhasnothingtodowithyou,soyoudon'tneedtoreportit;
B、Itcanbereportedselectively,andsmallonescannotbereported;
C、Afteranaccidentoccurs,theaccidentmustbereportedassoonaspossible,regardlessofsize;
D、Dealwiththeaccidentfirstandthenreportit;