Which of the following is a tool used for creating and sharing online learning games?

The correct option is Kahoot.

Here is a step-by-step explanation of why Kahoot is the correct answer, along with an overview of the other options:

1. What is Kahoot?
Kahoot is a widely used game-based learning platform that allows teachers, students, and businesses to create, share, and play interactive learning games or trivia quizzes. These games, often called "kahoots," are typically accessed via a web browser or the Kahoot app, making it a dedicated tool for educational gamification.

2. Analyzing the other options:
- Mentimeter: This is primarily an interactive presentation tool used to gather real-time feedback through polls, word clouds, and Q&A sessions, rather than a dedicated game-creation platform.
- Padlet: This is an online virtual bulletin board that allows users to collaborate, share posts, links, and documents on a digital wall, rather than a game platform.
- Zoom: This is a video conferencing and online meeting software designed for communication and virtual classrooms, not specifically for building learning games.