If x2 = y + z, y2 = z + x, z2 = x + y, then the value of 1 + 1 + 1 is;x + 1x + 1z + 1

If x2 = y + z, y2 = z + x, z2 = x + y, then the value of 1 + 1 + 1 is;

1.	If x2 = y + z, y2 = z + x, z2 = x + y, then the value of 1 + 1 + 1 is;x + 1x + 1z + 1
A.	1
B.	1
C.	2
D.	4
Answer» C. 2