Google supplies security updates for Android every _____ days.

Google supplies security updates for Android every 30 days. This regular schedule ensures that critical vulnerabilities are addressed promptly, enhancing the security posture of Android devices. While OEMs are responsible for integrating these updates into their specific device builds, Google's consistent monthly release provides a predictable cadence for security patching. Other options like 90 or 45 days are incorrect because Google's stated policy is a monthly (approximately 30-day) release cycle. The idea that updates are only released "when an OEM needs Google to build one" is incorrect; Google proactively develops and releases these updates, which OEMs then adopt.