Answer:
b. Names on folders are seen by anyone who happens to glance at an open storage container.
Explanation:
Alphabetic storage method is the use of serial alphabets from A to Z for storage of files. It is one of the oldest and easiest storage methods. Files can quickly be found under their alphabet.
Since alphabetic storage uses names to arrange serially, the names on files are the most prominent information displayed. When there is need to keep information confidential this may be a challenge, as anyone walking by will see the names on the files.