The correct answer for this question is this one: "D. 18 inches"
In order to solve this question, you just multiple the 3-inch line by the scale factor, which is 6.
There exists the same question from other source that has the following choices:
A. 3 inches
B. 6 inches
C. 9 inches
D. 18 inches
Ok I’m going to work on this it might take me awhile so bare with me
The rate is 1.6% annual change.