Which Marketo feature allows integration with webinar platforms?

The feature that allows integration with webinar platforms is the Event Program. This type of program is specifically designed to manage events, including webinars, and facilitates the tracking and nurturing of leads generated through these events. When using an Event Program, marketers can set up registration pages, send reminder emails, and analyze engagement metrics related to attendees, making it a critical tool for orchestrating successful webinars.

Event Programs are equipped with capabilities for tracking participant interaction, capturing registrants, and segmenting attendees based on their behavior, which is essential for effectively leveraging webinars as part of a marketing strategy. This is distinct from other options, such as the Email Program, which focuses on managing email campaigns without the specific functionalities required for events, or the Engagement Program, which is centered around ongoing customer engagement rather than single events. The A/B Testing Panel is primarily for testing different versions of emails or landing pages and does not pertain to webinars at all. Thus, the Event Program stands out as the correct answer for integrating with webinar platforms.