Final answer:
When approaching an intersection without 'Stop' or 'Yield' signs, you must yield to both traffic and pedestrians already in the intersection and to the vehicle on your right if it arrives simultaneously, making the answer 'C. All of the above'.
Step-by-step explanation:
Navigating intersections without 'Stop' or 'Yield' signs involves a twofold approach to ensure safe and orderly traffic flow. Firstly, A, it is essential to yield to both traffic and pedestrians already in the intersection. This practice prioritizes the safety of those who entered the intersection first, preventing potential conflicts. Additionally, B, yielding to the vehicle on your right if it arrives at the intersection simultaneously follows a widely accepted rule for determining the right-of-way. By adhering to this standard, drivers contribute to a smooth and predictable traffic pattern.
Therefore, the correct answer is C, All of the above, as responsible intersection behavior entails both yielding to existing traffic and pedestrians and giving the right-of-way to the vehicle on your right when simultaneous arrivals occur, promoting overall safety and efficiency.