Multi-choice problem: Continue writing the next sentence in this paragraph:

How to format a nokia n8
Back up any data you have on your phone.
Formatting will delete all data both on the n8's local storage and its memory card. So create a backup by copying any content you have on the phone to a computer.

Available options:
(I) Once you have formatted your phone data, it's time to format it on a pc or mac computer. You must do this if you don't have a pc, even if you do have a mac computer.;
(II) You can get free formatting software from verizon website, which is a wonderful source for smartphones. Order your phone to get a data backup for $300.;
(III) Check that your phone has enough battery. Make sure that your nokia n8 has at least half the battery level left before you format it to avoid interrupting the process.;
(IV) If you are logged in to a mobile computer with a nokia verizon/n9 system card, this data cannot be deleted. Download the wow appstore from the web app store.;
(III)