Determine Whether the Pairs of Lines Are Parallel, Intersect at a Single

Determine whether the pairs of lines are parallel, intersect at a single point, or are skew. If the lines are parallel, determine whether they are the same line (and thus intersect at all points) . If the lines intersect at a single point, determine the point of intersection.
-x = 1 + 3t, y = 3 - 3t, z = -t and x = 3 + 4s, y = -1 - 2s, z = 3 - 5s

A) The lines are skew.
B) The lines are parallel, distinct lines.
C) The lines intersect at a single point, (7, -3, -2) .
D) The lines intersect at a single point, (-5, 1, 3) .