(A) Tools for viewing and interacting with webpages
(B) Shortcuts to webapps
(C) A tool to help you catalog your bookmarks
(D) Available only on chromebooks
Extensions are best defined as extra tools for viewing and interacting with webpages. For example, the Screencastify extension allows you to record video screencasts of your browser with your own voiceover.
This question is a part of the Unit 9 Review of the Google for Education Fundamentals Training. You can find answers to all the Unit 9 Review questions in our Google for Education Fundamentals Training Answers page.