If \(\Delta = \left| {\begin{array}{*{20}{c}} 0\\ {a - b}\\ {a - c} \end{array}\begin{array}{*{20}{c}} {b - a}\\ 0\\ {b - c} \end{array}\begin{array}{*{20}{c}} {c - a}\\ {c - b}\\ 0 \end{array}} \right|\), then \(\triangle\) equals ?
1
(a + b + c)
2
-(a + b + c)
3
abc
4
0