What are "yield signs" intended to communicate?

Answer: C — Drivers must yield the right-of-way to oncoming traffic or pedestrians

Yield signs are specifically designed to communicate to drivers that they must yield the right-of-way to oncoming traffic or pedestrians. This means that when a driver approaches a yield sign, they need to slow down, assess the situation, and be prepared to stop if necessary to allow other vehicles or people to proceed safely. The purpose of this sign is to promote safety and ensure that traffic flows smoothly without causing accidents. The other options suggest different actions that are not aligned with the intention of a yield sign. For instance, the idea of speeding up to merge or continuing without stopping contradicts the fundamental purpose of yielding, which is to give priority to others. An advance stop signal would imply that a stop is required rather than yielding, which is a different directive altogether. Thus, option C accurately represents the essential communication of yield signs on the roadway.