Determine whether the following lines represented by the vector equations below intersect, are parallel, are skew, or are identical.

---

choose one Intersect Parallel Skew Identical 1. $\mathbf{r}(t) = \langle 1 -t,3+2t , -3t\rangle$ and $\mathbf{s}(t) = \langle 4 t, -3-8 t, 3+ 12 t \rangle$.

choose one Intersect Parallel Skew Identical 2. $\mathbf{r}(t) = \langle 2-3t,1,7-5t \rangle$ and $\mathbf{s}(t) = \langle 1+4t,6, -3-t \rangle$.

choose one Intersect Parallel Skew Identical 3. $\mathbf{r}(t) = \langle 4-2t, 4+5t, 1+2t \rangle$ and $\mathbf{s}(t) = \langle t, 5-3t, 23\rangle$.

---

Note: You only have two attempts at this problem.

---