The operating system keeps a small table containing information about all open files called __

 a) file table
b) directory table
c) open-file table
d) system table

open-file table

The operating system maintains an open-file table to keep track of information about all open files. This table contains details such as:

• File pointer (current position within the file)
• Access permissions
• File attributes
• Buffer addresses

This information is crucial for efficient file management and access.