thE molECulAr gEnEAlogy rEsEArCh group is BuilDing A DAtABAsE For thE purposE oF ______ .
A．oFFEring AssistAnCE in working out gEnEAlogy-rElAtED proBlEms
B．solving mAny issuEs without rElying on trADitionAl writtEn rECorDs
C．proviDing A pEDigrEE ChArt oF At lEAst Four gEnErAtions in thE worlD
D．ConFirming thE Assumption thAt All inDiviDuAls ArE oF thE sAmE origin