Using Terminal Digit Filing, the Record Number on the Folders

Using terminal digit filing, the record number on the folders immediately in front of and behind the number 24-31-83 would be

A) 23-31-83 and 25-31-83.
B) 24-31-82 and 23-31-83.
C) 25-31-83 and 23-41-83.
D) 24-32-83 and 24-33-83.