A data file is one that _____.

• A. A user can work with or manipulate
• B. It is a system file
• C. It is read-only
• D. It contains executable code

Answer: (A)

A data file is a file that holds information intended to be read, edited, and saved by users or applications. This is why the best answer describes it as something a user can work with or manipulate—open it, modify its contents, and store the changes. This distinguishes it from a system file, which is part of the operating system; from a read-only file, which cannot be changed; and from a file containing executable code, which is a program designed to run rather than store user data.