The Annual Occupational Effective Dose (EfD) Limit Does Not Include

The annual occupational effective dose (EfD) limit does not include:
1) personal medical radiation exposure from an imaging procedure.
2) natural background radiation exposure.
3) radiation exposure received on the job.

A) 1 and 2 only
B) 1 and 3 only
C) 2 and 3 only
D) 1,2,and 3