Niko bikes the same route after school every day. He starts by biking 15 blocks west. Then he goes 12 blocks north. Then he completes the path by kicking 15 blocks east and 12 blocks south. What is the area of Niko's bike path?

The first one, i believe, would be correct. all the others have one thing in common, and that's that they have repeating numbers. in the second one, x and y have repeating 6's and 3's, and in the third, x and y have repeating 6's as well. in the last one, there are repeating 3's. the first one has no repeating numbers.