MCQ: Which of the following Statements stands true for <strong>truncating a file</strong>?

• A. We search the directory for the named file. Having found the associated directory entry, we release all file space, so that it can be reused by other files, and erase the directory entry.
• B. The directory is searched for the appropriate entry, and the current-file-position pointer is re-positioned to a given value.
• C. Space in the file system must be found for the file and an entry for the new file must be made in the (directory).
• D. The user may want to erase the contents of a file but keep its attributes. Rather than forcing the user to delete the file and then recreate it, this function allows all attributes to remain unchanged—except for file length—but lets the file be reset to length zero and its file space released.