What should you do if road signs are missing or obscured?

Answer: C — Proceed with caution and obey any other traffic regulations

When road signs are missing or obscured, it is essential to proceed with caution and adhere to any other traffic regulations in place. This approach ensures that you remain vigilant and aware of your surroundings, allowing you to make informed decisions based on the flow of traffic and any road markings that might still be visible. Proceeding with caution helps to ensure the safety of both yourself and other road users since the absence of signage can lead to confusion. By obeying other traffic regulations, such as speed limits and yielding to pedestrians, you contribute to maintaining road safety under uncertain conditions. This answer is crucial because it underscores the importance of responsible driving behavior in the absence of clear guidance from road signs.