Answer:
I would say it's the one on the lower left corner.
Step-by-step explanation:
To find the line that is the best model for the data in a scatter plot, you just have to count the number of points above and below the line. The best model would have the same number of points above and below the line. So in the lower left corner graph, there are 5 points above the line, and 5 points below the line.
