Answer:
B) 2
Step-by-step explanation:
If you start from the origin and go to point B, you went up 2, and to the left 1. Now if you go from the origin to B', you went up 4, and to the left 4. Lets compare the ratios.
2/1 and 4/2
You had to multiply the first ration by 2 to get to the second ratio.
