John Has Been a Medical Assistant at the Medical Practice

John has been a medical assistant at the medical practice for 2 years and has always tried to do his job well. No matter how well he performs, his coworker Angie, who has been there for 5 years, finds something to complain about regarding his work. He has talked to Angie about this, but Angie's behavior has not changed. Although John loves his job, he feels that he is being unfairly targeted. What can John do as a next step in resolving this issue?

A) Begin complaining to Angie about her work
B) Encourage Angie to find another job
C) Ask the practice manager to mediate
D) Ask the practice manager to replace Angie
E) Complain to other office workers about Angie's behavior