Need Help. ( Look at the picture). Will Mark Brainliest. Graph the step function over the interval.

Just got home from school today and then going back home and getting my mom and back from school

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.