Which Kubernetes liveness probe result causes a container to be restarted?

1. A Readiness probe failure
2. ✓ B Liveness probe failure (correct answer)
3. C Startup probe failure within initialDelaySeconds
4. D Exec probe returning exit code 0

Shortcut: Liveness probe failure causes Kubernetes to restart the container (per the pod's restartPolicy). Readiness probe failure removes the pod from Service endpoints without restarting it.