Reduce the following equation into intercept form and find their intercepts on the axes $3x+2y-12=0$

Question

$\begin{array}{1 1}(A)\;a=-4 , b = -6 \\(B)\; a =4 , b = -6 \\(C)\; a = -4 , b = 6 \\(D)\;a = 4 ,b = 6 \end{array}$