The correct answer is C.
veinte = 20
8 + 12 = 20, and therefore 'veinte' is correct.
You see how much the scale is, let's say that it is 150 mm=300 miles. If it goes over, you can measure it with a ruler, or move with your hands, measuring it as well as possible and estimating. Hope this helps! :)
D. urbanization is always good for the environment
