Suppose $d, m, n, q > 0$ and $a, b, c, p < 0$. Match each pair of parametric equations with one of the lines $L1, L2, L3, L4$ in the figure below. For each, enter the appropriate name of the line (L1, L2, etc.).

I. $x = a + c t,\quad y = b + d t$ :
II. $x = m + p t,\quad y = n + q t$ :