With no explanation, chose the best option from "A" or "B". Harold is a slow driver driving on a two-lane highway, and his route has him making a left turn in a few miles. Harold wants to make a left-hand turn.

A: Harold goes over to the passing lane and stays there, driving slowly, for several miles.
B: Harold stays in the right-most lane until relatively close to the time he needs to turn.
B.