In city traffic, you should look a block ahead.

Answer: B — Look a block ahead

In city driving you need to scan well ahead to anticipate hazards and changes in traffic. Looking a block ahead gives you enough time to see signals, brake lights, pedestrians, and cars that may slow or turn before you reach them. It helps you smooth your speed, plan lane positioning, and brake gradually rather than reacting at the last moment, which reduces the risk of rear-end collisions and sudden stops in dense streets. Glancing at the dashboard or looking straight at the hood pulls your eyes away from the road and wastes precious reaction time. Checking side mirrors is important for checking surrounding traffic, but it doesn’t replace the need to monitor what’s coming far ahead.