Đường thẳng nào vuông góc với đường thẳng \(4x - 3y + 1 = 0\)\(\eqalign{
& (A)\,\,\,\left\{ \matrix{
x = 4t \hfill \cr
y = - 3 - 3t \hfill \cr} \right. \cr
& (B)\,\,\,\left\{ \matrix{
x = 4t \hfill \cr
y = - 3 + 3t \hfill \cr} \right. \cr
& (C)\,\,\,\left\{ \matrix{
x = - 4t \hfill \cr
y = - 3 - 3t \hfill \cr} \right. \cr
& (D)\,\,\,\left\{ \matrix{
x = 8t \hfill \cr
y = - 3 + t \hfill \cr} \right. \cr} \)
