You need to ensure that the lockout time for inactivity is set to 15 minutes

You are an administrator for a large company that has an Active Directory domain. Your
company has tablets that run Windows RT.
Users report that their tablets get locked after one minute of inactivity. They also report that
when they change the Personalization setting to 15 minutes, it resets back to 1 minute.

You need to ensure that the lockout time for inactivity is set to 15 minutes.
What should you do?

A.
Log on to the tablets as a local administrator and configure the screensaver wait time and
logon options.

B.
Modify Group Policy.

C.
Modify ActiveSync configuration.

D.
Log on to the tablets as a local administrator and run the PowerShell cmdlet
SetScreenSaverTimeout -Seconds 900.

E.
Configure the local system policy Do not display the lock screen setting to Enabled.