Answer the following question given this paragraph: 

Most of the time, you breathe without thinking about it. Breathing is mostly an involuntary action that is controlled by a part of your brain that also controls your heart beat. If you swim, do yoga, or sing, you know you can control your breathing, however. Taking air into the body through the nose and mouth is called inhalation . Pushing air out of the body through the nose or mouth is called exhalation . The woman pictured below is exhaling before she surfaces from the pool water ( Figure below ).


Q: What is the term for expelling air out of the body through the nose or mouth?

 Choices:

- induction

- inhalation

- perspiration

- exhalation

A:
exhalation
