1 + 1 + 1 = ? 1 + x(b - a) + x(c - a) 1 + x(a - b) + x(c - b) 1 + x(b - c) + x(a - c)

1 + 1 + 1 = ? 1 + x(b - a) + x(c - a) 1 + x(a - b) + x(c - b) 1

1.	1 + 1 + 1 = ? 1 + x(b - a) + x(c - a) 1 + x(a - b) + x(c - b) 1 + x(b - c) + x(a - c)
A.	0
B.	1
C.	<i class="ga-var">x</i>
D.	<sup><i class="ga-var">a</i> - <i class="ga-var">b</i> - <i class="ga-var">c</i></sup>
E.	None of these
Answer» C. <i class="ga-var">x</i>