The answer is D.
Take a look at the x-axis and the y-axis. In the x-axis, we see "time," and in the y-axis, we see "distance from Lisa's house." Since Lisa is returning home, the distance should be shorter (negative), and D. is the one the most "negative" (I would say) in the graph. Plus, it's the latest in time. Since she left home from a trip and returned, D. would be logically correct to say that she's closer to home.
