Write the next sentence in the following story.

How to keep from spending too much time on your iphone
Instead of charging your phone overnight or carrying a charger with you, only charge it when you get up in the morning and when you get home.
Never charge overnight or over the course of a day. This will leave your battery with around 1/4 to 1/2 of battery depending how long you have until you go to work or such.

Available choices:
(i) Hide a charger in your car. In some cases, it can just be under the wheel well that the charger is locked in.;
(ii) When you hear another tap on your device it means you need to remove your iphone from its charging tray. To use your phone first place it on its charger tray, then tap " settings.;
(iii) Use it when you have something important to do. It will keep you busy while you get in your car.;
(iv) Have your phone on standby in the back seat. This way, you aren't tempted to use it.;. The answer should be
(iv)