This route marker sign indicates...

Answer: A — Turn Right to Go West on Route 22.

Reading route markers is about matching the route number with the direction and following the arrow that shows how to reach that direction. In this sign, you see Route 22 with West and an arrow pointing to the right. That combination tells you that to head west on Route 22 you must turn right now. The number identifies the highway, the word West shows the direction along that highway, and the arrow indicates the exact turn to take to join the westbound route. If you went left, you’d be heading onto a different direction or road; going straight would leave Route 22 entirely at this point; and a sign saying the route ends would look different, signaling an end rather than the continuation of Route 22 West.