GreenTel,a Telecom Giant,has Been Using the Service of Orpheus Inc

GreenTel,a telecom giant,has been using the service of Orpheus Inc.for training its employees.According to a deal signed by the two companies,Orpheus Inc.is not only responsible for training GreenTel's employees but also for providing comprehensive administrative services to the telecom giant.In this instance,GreenTel engages in _____.

A) task redefinition
B) internal analysis
C) disinvestment
D) outsourcing