This is a test of commonsense with single/multi-choices. Complete the next sentence:

How to set a scheduled time for the iphone's do not disturb feature to activate automatically 
Tap the settings app. 
You can find this on your iphone. 
Tap notifications.

Available choices:
 -- Tap on " do not disturb ". Slide the slider of " scheduled " so it is listed as " on ".;
 -- This will sync scheduled time to all timeboards on your device. Tap any timeboard you want to set your phone off manually.;
 -- This is located to the right of the " auto notification " tab. Tap overnight app (iphone 2).;
 -- It's at the top of the screen. If ringtone is enabled, the screen will shift and show first.;
The answer is:
Tap on " do not disturb ". Slide the slider of " scheduled " so it is listed as " on ".