The archive wants to digitize its most-requested photographs first. But the most-requested photographs are already available on microfilm, while a set of fragile letters has no accessible copy and is deteriorating. Since digitization should first prevent irreversible loss of inaccessible materials, the letters are the stronger priority. The archive should digitize the fragile letters before the photographs. In the reasoning about archive digitization priorities, which answer correctly tells the intermediate conclusion apart from the main conclusion?