Pop quiz: What's an API?

Which of the following statements about APIs is NOT true?

50 XP

An API is a set of protocols and routines for building and interacting with software applications.
API is an acronym and is short for Application Program interface.
It is common to pull data from APIs in the JSON file format.
All APIs transmit data only in the JSON file format.
An API is a bunch of code that allows two software programs to communicate with each other.