Explanation/Reference:
Explanation:
In the Choose how updates are installed setting, you can use the drop-down menu to choose an option:
Schedule a restart

Automatically restart

The Schedule a restart option will allow the user to choose when the computer is restarted. Of the answers given, this is the only way to prevent Computer1 from automatically restarting without the logged on user's consent after the installation of the Windows updates.
Incorrect Answers:
A: The Defer Upgrades setting delays feature upgrades for several months while allowing security updates through. It does not prevent a computer from automatically restarting without the logged on user's consent after the installation of the Windows updates.
B: The Automatic App Update scheduled task is for updating Windows Store Apps, not the operating system. Furthermore, there is no setting in the Automatic App Update scheduled task that can prevent a computer from automatically restarting without the logged on user's consent after the installation of updates.
C: The Choose how updates are delivered setting can be used to enable or disable peer-to-peer updates. This is where one computer on the network downloads the updates from Microsoft and other computers on the network download the updates from that computer. This setting cannot prevent a computer from automatically restarting without the logged on user's consent after the installation of the Windows updates.
References:
http://windows.microsoft.com/en-gb/windows-10/getstarted-choose-how-updates-are-installed