review the sentences and determine which one is correct

A. The judge admonished the prosecutor and defense attorney who was distracting the jury from the facts of the case.

b. The judge admonished the prosecutor and defense attorney who were distracting the jury from the facts of the case.

c. The judge, who often admonishes attorneys, believes his practice is appropriate .

d. The judge, who often admonishes attorneys, believe his practice is appropriate.

I'll be glad to check your answers.