Which of the following operations can be performed on the file "NOTES.TXT" using the below code?FILE *fp;fp = fopen("NOTES.TXT", "r+");ans.

The code provided opens the file "NOTES.TXT" in "r+" mode. This mode stands for reading and writing. Therefore, the operations that can be performed on the file "NOTES.TXT" using this code are:

1. Reading the content of the file: Since the file is opened in "r+" mode, you can read the content of the file using functions like fgets(), fscanf(), etc.

2. Writing to the file: Along with reading, "r+" mode also allows you to write to the file. You can use functions like fputs(), fprintf(), etc. to write to the file. However, it's important to note that writing will not append to the file but will start overwriting the file from the beginning.

3. Updating the file: Since the file is opened in a mode that allows both reading and writing, you can perform operations that involve reading the existing content, modifying it, and writing it back to the file.

4. Closing the file: After performing the necessary operations, you can close the file using the fclose() function. This is not an operation on the file content, but it's a good practice to close files after operations to free up system resources.

Please note that if the file "NOTES.TXT" does not exist, the fopen() function will return a NULL pointer.