Concept:MOOC stands for Massive Open Online Course. It is a free online learning platform that provides courses to anyone with internet access. MOOC platforms offer structured content for self-paced learning.Explanation:Udacity, Coursera, and Google Primer are well-known MOOC platforms. They allow learners to study a wide range of subjects without paying fees or attending a physical school. Zoom is a video-conferencing tool used for live meetings or classes. It is not designed to deliver full courses or learning materials on its own. While Zoom can be used for online teaching, it lacks the features of a dedicated MOOC platform, such as course modules, assessments, and certificates. Therefore, among the given options, Zoom is the one that is not a MOOC platform.Answer:C. Zoom