Which of the following is not able be measured by Twitch's bespoke measurement capabilities?

Twitch's native analytics and measurement tools are designed to track activity within its own platform. Therefore, it cannot directly measure performance on external social media platforms like Twitter, Instagram, or TikTok. While Twitch can track some aspects of custom integrations if they feed data back into Twitch's systems or use Twitch APIs, the measurement of the integration's performance itself, especially if it's a third-party tool not fully integrated for analytics, might require separate tracking. Sponsorships and live events, however, are often directly tied to Twitch streams and campaigns, allowing for measurement through Twitch's internal analytics (e.g., ad impressions, viewership during sponsored segments, or engagement with event-specific content).