To un-set (force to 0) all the bits of a bit pattern, make a mask of all 0s and then _______ the bit pattern and the mask.

To un-set (force to 0) all the bits of a bit pattern, make a mask of all 0s and then _______ the bit pattern and the mask.



a. AND

b. OR

c. XOR

d. NOT



Answer:  a