Find the point of intersection. Otherwise, find the distance between the two lines.
(L₁: x = 2 + t, y = 2 + 2t, z = 1 - t)
(L₂: x = -2 - 2s, y = -8 - 4s, z = 2 + 2s)
a) Point of intersection
b) Distance between the lines
c) No intersection, lines are parallel
d) The lines intersect at infinity