If y is the mean of x1, x2, ..., xn, then the value of (x1 - y) + (x2 - y) +...+ (xn - y) is

If y is the mean of x1, x2, ..., xn, then the value of (x1 - y) + (x2

1.	If y is the mean of x1, x2, ..., xn, then the value of (x1 - y) + (x2 - y) +...+ (xn - y) is
A.	1
B.	0
C.	10
D.	None of the above
Answer» C. 10