What are the four layers of security that keep Android devices safe?

The correct answer, "A multi-layered approach from hardware, OS, management APIs and Google services such as Google Play Protect," accurately describes the four core security layers of Android Enterprise. This comprehensive strategy ensures protection from the foundational hardware level, through the operating system, via robust management APIs for enterprise control, and finally with cloud-based services like Google Play Protect for app and device security. The other options contain inaccuracies: "Android Security Suite" is not a recognized, distinct layer in this context; "Anti-virus applications" and "network traffic monitoring tools" are components of a security strategy but not the fundamental layers themselves; and "OEM security suite" refers to vendor-specific additions rather than the universal Android security architecture.