Maybe it infers that earth may not be ready for advanced technology such as aliens
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:
(If this word is provided) <u>Perspective</u>
I think it's C ;)) hope it's right.
