Which of the following is a risk factor for vehicle heatstroke?

Risk factors for vehicle heatstroke primarily relate to circumstances that can contribute to a child's exposure to extreme temperatures inside a vehicle. When caregivers are not accustomed to the responsibilities of driving with children, there may be an increased likelihood of neglecting safety precautions. This can include forgetting a child in the vehicle or misunderstanding the severity of heat exposure, especially on hot days.

On the other hand, driving with windows down, ensuring proper ventilation, or making frequent stops generally provide better airflow, thus reducing the risk of heat buildup in the vehicle. Such factors might actually help in keeping the vehicle cooler, making option B the more concerning risk factor in terms of child safety in vehicles.