The determinant $\begin{vmatrix}b^2 - ab & b - c & bc - ac\\ab - a^2 & a - b & b^2 - ab\\bc - ac & c - a & ab -a^2\end{vmatrix}$ equals

Question

$\begin{array}{1 1} abc(b-c)(c-a)(a-b) \\ (b-c)(c-a)(a-b) \\ (a+b+c)(b-c)(a-b) \\ None\;of\;these\end{array} $