Final answer:
The basement or storm cellar is the safest place during a tornado due to protection from high winds and flying debris. Planning for such an event can ranging from no action (Plan A) to proactive measures (Plan B), with potential costs balanced against increased safety.
Step-by-step explanation:
The safest place to be in the event of a tornado is in a basement or storm cellar. Tornadoes can produce extremely high winds and can destroy buildings, send debris flying, and are a significant threat to life and property. A basement or storm cellar offers the greatest protection by placing you below ground level and shielding you from flying debris and collapsing structures.
Scenario planning for a tornado could include Plan A, which is to do nothing, and Plan B, which is to take proactive measures like boarding up windows and taking cover in a tornado shelter. If a tornado were to hit, Plan B's costs may include the time and money spent on preparations, but the feelings of safety and relief in the aftermath would likely make these actions worthwhile. Whereas Plan A could result in severe damage to property or harm to individuals due to lack of preparation.