Dilate line f by a scale factor of one half with the center of dilation at the origin to create line f'. where are points a' and b' located after dilation, and how are lines f and f' related?

the locations of a' and b' are a' (0, 2) and b' (0, 0); lines f and f' intersect at point a.
the locations of a' and b' are a' (0, 1) and b' (1, 0); lines f and f' are parallel.
the locations of a' and b' are a' (0, 0) and b' (2, 0); lines f and f' intersect at point b.
the locations of a' and b' are a' (0, 2) and b' (2, 0); lines f and f' are the same line.