What are the signs of a drunken driver?

Answer: C — Erratic driving, swerving, and sudden stops

A drunken driver often exhibits erratic behavior behind the wheel, which includes unpredictable actions such as swerving between lanes, abrupt changes in speed, and unexpected stops. These behaviors are clear indicators that the driver may be impaired and unable to maintain proper control of the vehicle. Drunkenness affects a person's coordination, judgment, and reaction time, which can manifest in various ways on the road. In contrast, following all traffic laws, avoiding sudden stops, or driving at the speed limit are signs of responsible driving and do not typically characterize the behavior of someone under the influence. Therefore, recognizing erratic driving, swerving, and sudden stops is crucial for identifying potential drunken drivers and ensuring road safety.