Đường thẳng nào song song với đường thẳng \(x - 3y +4 = 0\)\(\eqalign{
& (A)\,\,\,\left\{ \matrix{
x = 1 + t \hfill \cr
y = 2 + 3t \hfill \cr} \right. \cr
& (B)\,\,\,\left\{ \matrix{
x = 1 - t \hfill \cr
y = 2 + 3t \hfill \cr} \right. \cr
& (C)\,\,\left\{ \matrix{
x = 1 - 3t \hfill \cr
y = 2 + t \hfill \cr} \right. \cr
& (D)\,\,\,\left\{ \matrix{
x = 1 - 3t \hfill \cr
y = 2 - t \hfill \cr} \right. \cr} \)
