Which of the following statements about the relationship of national identity and ethnic identity are correct:

A、Sometimesethnicidentityandnationalidentityemergeatthesametimeandtheycombineintoone,evenit’shardtodistinguishthem.;
B、Thedevelopmentpathsofethnicidentityandnationalidentityaredifferent.;
C、Thewayonegainstheidentityofacountyistobecomeitscitizen.;
D、Ethnicidentityisakindofinnateidentity,whichisrelatedtoone'sfamily,ethnicculturalvaluesandtraditionalconcepts.