A driver is positioned in the right lane of this roadway. Can they continue straight ahead?

A)Yes; they can turn right or continue straight ahead.
B)Yes, because there is no vertical sign prohibiting going straight ahead.
C)No, they are required to turn right.Correct
# Explanation
The right lane is regulated by a **horizontal arrow pointing only to the right**, which means it is an exclusive lane for turning right. Drivers positioned in this lane **are required to follow the direction indicated by the road marking**, regardless of whether there is no additional vertical sign. Therefore, they cannot continue straight ahead and must turn right.