To dilate a pre-image about a point by a scale factor of 1/3, which of the following is a good step?

A) Make sure all the angles are 1/3 the size of the pre-image with the point of dilation in the center.
B)Pick a vertex, go the the dilation point and then go 1/3 of the distance on the same line to plot the image vertex.
C)Pick an angle and make sure the image vertex is 1/3 as wide.
D)Pick a side of the pre-image and cut it by 1/3, then do the same for all sides