A.  x2+y2-z2+2x-y-8z+5=0

B.  x2+y2-z2+2x-y-8z-5=0

C.  x2+y2+z2+2x-y-8z+5=0

D.  x2-y2-z2+2x-y-8z-5=0

Correct Answer :
x2+y2+z2+2x-y-8z+5=0
Explanation :
No Explanation available for this question
"