Which of the following best describes intimate partner violence (IPV)?

Which of the following best describes intimate partner violence (IPV)?
 
  a. It refers to any rape or sexual assault, or aggravated or simple assault committed by someone in a powerful position such as a government official
  b. It refers to any rape or sexual assault, or aggravated or simple assault committed by someone of a high social economic class
  c. It refers to any rape or sexual assault, or aggravated or simple assault committed by someone such as a spouse or partner
  d. It refers to any rape or sexual assault, or aggravated or simple assault committed by someone on probation or parole