Answer:
Roads
Explanation:
Just try to fill in the word "route" with the options and see which one makes sense.
the quickest building cities from A to B doesn't sound right, and neither do the other options, but the quickest roads from A to B sounds reasonable.
Answer: The first one is character vs nature, the second one is character vs self, and the third one is character vs character.
Because it kind of goes with the story