Final answer:
When a tire catches on fire, it must be cooled down to prevent further damage.
Step-by-step explanation:
B. A burning tire must be cooled. When a tire catches on fire, it is important to cool it down to prevent the fire from spreading or reigniting. This can be done by spraying water or using a fire extinguisher to cool the tire. It is important to stay safe and keep a safe distance from the fire when attempting to cool a burning tire.