If a user visits the home page of a website with a video embedded and leaves without clicking on anything, Google Analytics will count this session as a bounce.
Correct answer is:
Explanation: The term “Non-interaction” applies to the final, and optional, boolean parameter that can be passed to the method that sends the Event hit. This parameter allows you to determine how you want bounce rate defined for pages on your site that also include event tracking. For example, suppose you have a home page with a video embedded on it. It’s quite natural that you will want to know the bounce rate for your home page, but how do you want to define that? Do you consider visitor interaction with the home page video an important engagement signal? If so, you would want interaction with the video to be included in the bounce rate calculation, so that sessions including only your home page with clicks on the video are not calculated as bounces.
Read more here: https://support.google.com/analytics/answer/1033068