_____removes the named file, so that a subsequent attempt to open it will fail.Options*remove (const filename)remove(filename) remove()fclose(filename)

The function that removes the named file is remove(const filename). Here's how it works:

1. The remove function is a standard library function in C and C++ programming languages. It is included in the stdio.h (in C) or cstdio (in C++) library.

2. The function takes a single argument, which is a constant character pointer. This argument represents the name of the file to be removed. For example, remove("file.txt") will remove the file named "file.txt".

3. If the function successfully removes the file, it returns zero. If it fails (for example, if the file does not exist or the program does not have sufficient permissions to delete the file), it returns a non-zero value.

4. After the file is removed, any subsequent attempt to open it using a function like fopen will fail, because the file no longer exists.

5. The other options you mentioned, remove(filename), remove(), and fclose(filename), are not correct. The remove function requires a filename as an argument, and fclose is a function used to close a file that has been opened, not to delete a file.