Answer:
A) Data set A
Step-by-step explanation:
Residuals describe how far each point is from the regression line. The farther each point is from the line, the worse the fit; the closer each point is to the line, the better the fit.
Graph B has points that are not tightly centered around a line. This is not a good fit.
Graph C has a U-shape; it is not a good fit.
Graph A, however, shows us that all of the points are tightly centered around a line; this is a good fit.
