Which scenario exemplifies an individual in the external labor market?

A、Sarah,acontractworker,workingforacertainperiodspecifiedinawrittencontract
B、Drew,atemporaryworker,beingpaidbyacompanyforhisservices
C、Morgan,anengineeringgraduate,lookingforajob
D、Silas,anemployee,goingthroughtraining
E、Jamaal,anemployee,securinghisfinancialservicescertification