What is a key responsibility of drivers regarding road signs?

The key responsibility of drivers regarding road signs is to familiarize themselves with and follow the instructions presented. Road signs are crucial for ensuring safety and maintaining traffic order. They convey important information about speed limits, road conditions, regulatory instructions, warnings, and navigational guidance.

Understanding these signs is vital for safe driving, as they help drivers anticipate changes in road conditions, the actions of other drivers, and legal requirements. By being familiar with the signs, drivers can make informed decisions on the road that contribute to their safety, as well as the safety of passengers and other road users. Following the instructions on road signs helps in preventing accidents and maintaining a smooth flow of traffic.

The other options suggest behaviors that would undermine road safety and driver responsibility. Ignoring unclear signs, focusing only on speed limits, or waiting for others to interpret signs negate the proactive and responsible approach a driver should take towards road signs.