The set of lines $ax+by+c=0$ where $3a+2b+4c=0$ is concurrent at the point.

Question

$\begin{array}{1 1}(A)\;(\frac{1}{2},\frac{2}{3}) \\(B)\;(\frac{3}{4},\frac{1}{2})\\(C)\;(\frac{2}{3},2)\\(D)\;(\frac{2}{5},\frac{1}{5}) \end{array}$