All else equal, the jobs that are the least likely to be outsourced are those that:

All else equal, the jobs that are the least likely to be outsourced are those that:
A.require face-to-face communication.
B.can be done by a computer.
C.do not involve face-to-face contact.
D.can be broken down into series of well-defined steps.
正确答案：require face-to-face communication.