Let $a , b$ and $c$ be three real numbers. Then the equation $\frac { 1 } { x - a } + \frac { 1 } { x - b } + \frac { 1 } { x - c } = 0$\\
(A) always have real roots.\\
(B) can have real or complex roots depending on the values of $a , b$ and $c$.\\
(C) always have real and equal roots.\\
(D) always have real roots, which are not necessarily equal.