What does a "Yield" sign look like?

A "Yield" sign is represented by a red and white equilateral triangle, which is designed to convey the need for drivers to give way to other vehicles or pedestrians. The triangular shape is a universally recognized symbol that indicates caution and the need to slow down or stop if necessary to allow others to proceed safely. This visibility and the colors used (red and white) are essential for ensuring that drivers can quickly identify the sign even from a distance, promoting safety on the roads.

In contrast, the other options do not represent a "Yield" sign: a red square typically does not signify any traffic regulation, a yellow octagon is the shape of a stop sign, and a green circle generally indicates permissible actions such as go or entry to a road. Each of these shapes and colors serves a different purpose in traffic signage and does not communicate the same message as a "Yield" sign.