What does Event Grid's retry policy with exponential backoff mean for event delivery?

1. A Events are retried at fixed 1-second intervals
2. ✓ B Retry intervals increase exponentially (e.g., 10s, 20s, 40s...) up to a max interval, reducing load on unhealthy endpoints (correct answer)
3. C Events are retried for exactly 10 minutes
4. D Events are only retried once

Shortcut: Event Grid uses exponential backoff for retries, increasing the interval between attempts. This prevents overwhelming a struggling endpoint. Events are retried for up to 24 hours by default.