Never drive faster than is safe for current conditions.

• A. Never drive faster than the posted speed limit
• B. Always drive at the posted limit
• C. Never drive faster than is safe for current conditions
• D. Always drive slowly in poor weather

Answer: (C)

Drive safely means adjusting your speed to what the road and conditions allow, not just following the number on a sign. The safest speed is the one that lets you stop in time for hazards, react to unexpected situations, and maintain control on the surface you’re on. When conditions are challenging—rain, snow, ice, fog, glare, or reduced visibility—the stopping distance increases and traction can drop, so you must slow down accordingly. That’s why the best answer says you should never drive faster than what’s safe for the current conditions. The posted speed limit is designed for ideal conditions, but it isn’t a guarantee of safe speed in every situation.

Options that focus only on the posted limit miss the essential idea that conditions drive safe speed, and an insistence on always going at the limit ignores real hazards. Similarly, insisting you always drive slowly in poor weather is too absolute—safety means choosing a speed appropriate to the actual conditions, which can vary.