Among the following, which is a notable feature of Google Jamboard?

Google Jamboard is particularly recognized for its capacity for real-time collaboration. This feature allows multiple users to contribute to a single board simultaneously, making it an excellent tool for brainstorming sessions, group projects, and interactive discussions. Participants can add sticky notes, drawings, images, and text to the board, seeing each other's contributions as they happen. This collaborative nature enhances teamwork and engagement, making it beneficial for educational settings where teachers and students can work together seamlessly, regardless of their physical locations.

Other options, such as the ability to record lectures, automatic grading, and user-generated quizzes, do not pertain to Jamboard’s core functionality. While these features may exist in other Google Workspace tools, Jamboard is primarily focused on visual collaboration and ideation rather than assessment or lecture recording tasks.