Chan Le Is a Probation Officer Who Is Employed by the State

Chan Le is a probation officer who is employed by the state.  Chan Le has an extremely large caseload and often gets overwhelmed by the requirements of his job.  In the middle of the night, Chan Le is called to respond to one of his new clients who has been caught shoplifting a small amount of merchandise from a local department store.  Two days prior, this client failed a drug test.
Which is true about the role Chan plays in the revocation and termination of probation?

A) Chan has some discretion as to whether he will recommend revocation for a technical offense.
B) Revocation could ultimately save $50,000 or more in prison costs.
C) Chan's revocation rates for probationers probably differ significantly from other jurisdictions.
D) Only a and c.