B. Interpreting a complicated medical term that you have not encountered before
The word abuse has a much stronger connotation than "bullying" which is usually associated with teasing. The former, however, is typically associated with emotional and/or physical harm on the body. If someone is being "bullied" and it involves harm on the body, then it could definitely go hand-in-hand with abuse.
The structure is called the Eustachian tube.
Hope I could help.
