you are basically just comparing the ratios (the ratios will have to be the same for both for it to be the correct answer) so for choice A you would do: 116.5cm:845km =0.14 174cm:1160km=0.15 these are not equal so it would not be correct
the correct answer would be B because: 42.25cm:845km=.05 58cm:1160km=.05
