If you want to clear a single file, you will use clear (CLR) instruction. Thus, for this question option A 'none of the choices' is the correct answer.
The 'clear' instruction is used to clear the value within the file or word to zero. When the input of clear instruction is true, the value within the destination file will be set to zero.
However, the function of each move instruction is briefly described below:
You can leran more about Move at
https://brainly.com/question/15134002
#SPJ4