c. to exaggerate
Hyperbole is used to exaggerate a thought or idea. It often makes the tone humorous or overly dramatic. It's important to be careful when using hyperbole in writing because it can also make the speaker seem unreliable since a hyperbole is not a complete truth. A few examples of everyday hyperboles are: My homework is going to take forever. I'm so hungry, I could eat a cow. I'm so embarrassed, I could die.
Medical Dictionary, Hope this helps ^^
