Q.
A. x2 + y2 - 4x - 4y + 16 = 0
B. x2 + y2 - 8x - 8y + 16 = 0
C. x2 + y2 + 4x + 4y + 4 = 0
D. x2 + y2 - 4x - 4y - 4 = 0
E. None of the above
Correct choice: B
Explanation: