
Explanation:

Box 1: Live event
Live events
Live events are structured meetings that enable your organization to schedule and produce events that stream to large online audiences-up to 20,000 people. With live events, the audience interaction is a managed Q&A experience.
Note: Meetings, webinars, and live events are all types of meetings, but webinars and live events provide additional control for the organizer over the conversation and participants. Webinars provide two-way interaction while live events provide a managed Q&A experience.
The different types of meetings also have different participant limits and participant capabilities.
* Live events
Number of participants: Up to 20,000
- Broadcast to large audiences.
- Moderated Q&A for audience interaction.
- Can specify producers and presenters, including external presenters.
- Supports more advanced production capabilities.
Registration supported: no
Box 2: Webinar
Webinars
Webinars are structured meetings where presenters and participants have clear roles. A key difference between webinars and Teams meetings is that webinars support robust registration management, customizable event and registration site, and event-oriented default meeting options.
Note: Meetings, webinars, and live events are all types of meetings, but webinars and live events provide additional control for the organizer over the conversation and participants. Webinars provide two-way interaction while live events provide a managed Q&A experience.
The different types of meetings also have different participant limits and participant capabilities.
* Webinars
Number of participants: Up to 1,000
- Participants up to 1,000 have fully interactive capabilities.
- Audience interaction configurable.
- Can specify presenters
Registration supported: yes
Incorrect:
* Meetings
Number of participants: Up to 20,000
- Participants up to 1,000 have fully interactive equal meeting capabilities.
- Participants over 1,000 up to 20,000 have View-only capabilities.
Registration supported: yes
Reference:
https://learn.microsoft.com/en-us/microsoftteams/quick-start-meetings-live-events