16. Which one of the following sentences contains NO errors?
O A. Since John was a past donor he was not aloud to participate in the State's upcoming election.
O B. The training course was so grueling that John began to wonder whether he would ever get his certificate.
C. Because the defendent was compliant with the judge's demands, his sentence was reduced.
D. After coming home from work, Julie liked to turn on the radio, while she made a light snack.