Home / Saskatchewan / Questions / Rules of the Road Rules of the Road Report Interior fogs up: A Ignore B Defrost + AC; crack window C Hand wipe D Speed Show Answer & Explanation Correct Answer: B. Defrost + AC; crack window AC works with heat. Previous Next More Rules of the Road Questions Oncoming snowplow: Crosswind passing semi: Elderly crossing uncontrolled: Alternating flaggers slow/go: 4-lane undivided school bus opposite: Often Missed All Saskatchewan Questions Smart Practice Mock Exam Road Signs Guide