(A) Every time a user performs an action with event tracking implemented
(B) Every time a user adds an event to their calendar
(C) Every time a user makes a reservation
(D) Every time a user performs an action with pageview tracking implemented
If you have event tracking enabled on your website and a user performs an action your website then the tracking code gets this data and sends this data to Google Analytics in the form of a Hit URL containing a specific Hit Type known as an event. This action can be anything like making a purchase, watching a video, signing up for a newsletter, etc.
This question is a part of the Google Analytics Individual Qualification. You can get all the answers with detailed explanation for this exam in our Google Analytics Individual Qualification Exam Answers page.