A、rEsEArCh sCiEntist wAnts to stuDy A CErtAin AttriButE oF Dogs． it is EstimAtED thAt ApproximAtEly 5 pErCEnt oFAll Dogs hAvE this AttriButE．iF thE sCiEntist wAnts to stuDy A sAmplE oF n Dogs hAving thE AttriButE，ApproximAtEly how mAny Dogs shoulD BE sCrEEnED in orDEr to ABtAin thE DEsirED sAmplE sizE
A、
B、5n
C、20n
D、105nE、120n