Skids are likely to occur on which of the following roads?

Answer: A — One on which snow has become packed

Skids are more likely to occur on roads where the conditions create slippery surfaces. When snow becomes packed, it can form a smooth, icy layer that reduces tire traction, making it easier for vehicles to skid, especially during sudden stops or turns. Newly paved roads can also be hazardous, particularly if the surface is still smooth and lacks enough grip for tires. It is common for newly paved asphalt to have a slick surface initially, which can contribute to skidding, especially if moisture is present. Considering both scenarios, packed snow and freshly paved roads both create conditions that increase the likelihood of skidding, which supports the idea that both situations contribute to skidding risks. Thus, the choice that encompasses both conditions being hazardous is accurate, as skids can indeed happen on either.