What is shown in the image?

The correct answer is A. Traffic signal ahead. In the image, you can see a pole with traffic lights on it, indicating that there is a traffic signal ahead. This is an important sign for drivers to be prepared to stop or slow down as they approach the intersection.

Option B, Stop sign 150 m (500 feet) ahead, is not correct because there is no indication of a stop sign in the image. Option C, Bump 120 m (200 feet) ahead, is also not correct as there are no road surface irregularities or bumps shown in the image. Option D, Railway crossing ahead, is incorrect as there are no railway tracks visible in the image.