Blocking all network traffic to Google services would prevent ChromeOS devices from communicating with Google servers. This would lead to several issues: * Login failures: ChromeOS devices require access to Google services for user authentication and login. * Sync failures: ChromeOS relies on Google services to sync user data, settings, and policies. * Policy updates not received: ChromeOS devices fetch policy updates from Google servers, so blocking access would prevent them from getting updates. Why other options are less likely: * A. New devices enrolled: While enrolling new devices might cause some temporary network congestion, it wouldn't typically block all communication with Google services. * C. Root CA expiration: This would affect secure connections to websites, but not necessarily prevent all communication with Google services. * D. Expired licenses: Expired licenses would restrict access to some features but wouldn't prevent basic login and sync functionality.