What happens next in this paragraph?

How to clean old photos
Scan digital images first.
Before you begin the cleaning process, back up your photos digitally. While proper cleaning minimizes the risk of damage, it does not completely eliminate it.
Available options:
[A]. Scan your photos onto your computer and save them before attempting to clean them. If you don't have a scanner, stop by a local print shop and use one there.
[B]. One other major concern when cleaning photos is unintended flashes of light or cluttered backgrounds. For every few photos you take of a mobile device, scanning the scanned images first helps reduce the risk of confusion.
[C]. Photographs tend to be more prone to damage if stored on a hard to burn surface. When scanning digital photos, try scanning the main photo elements.
[D]. Ensure you're scanning every surface in your home thoroughly before you begin. That way, if you run the scan over accidentally and smudge any pictures, it will be disinfected and can be reinstalled more easily with less trouble.
[A].