In Example 7, are the two lines r (t ) = (2 + 2t, -4t, 6t - 2) and R (t ) = (-3 - 3t, 10 + 6t, 19 +9t) the same line, parallel but distinct lines, intersecting lines, or skew lines? O They are parallel and the same line. O They are parallel but distinct lines. They are intersecting lines. O They are skew lines