Solution

The correct answer is When the user refreshes the browser and there is a persistent cookie

Key Points 

• Persistent cookies are stored on the user's device and can persist across browser sessions.
• When the user refreshes the browser, the persistent cookie allows the server to recognize and associate the user with an existing session, thus allowing the session to continue.
• Persistent cookies are not affected by actions like quitting the browser or logging out, and they can help maintain session state even if there is some inactivity that would otherwise lead to a timeout.

Additional Information 

• Closing a browser often ends the session, especially if it relies on session cookies.
• When a user is logged out and invalidated by a servlet, the session also ends, as the 'logout' action generally terminates the session.
• A session timeout due to inactivity would definitely lead to the end of the active session.