Although I cannot say for sure without seeing the list of options, the answer is most likely none of the above. Residents of many towns believe they are protected from tornadoes by a river, lake, or hill when none of these things will stop a tornado. The apparent lack of tornadoes in most of these towns is usually a matter of mere chance.
No town is protected from tornadoes in the sense that something prevents them from striking. The only "protection" that exists are warnings, which let people get to safety before a tornado hits.
There are many myths about towns that are protect by a nearby river, hill, or some other feature. In reality none of these features do anything to stop tornadoes. Places believed to be protected, such as Topeka, Kansas and Pilger, Nebraska have been devastated by tornadoes. There are many towns in Tornado Alley that have never had a tornado, or at least a significant tornado, in recorded history. That these places have not been hit while others have is simply a matter of chance.
No. Such features have little to no affect on tornadoes.
Yes. Tornadoes have happened near Corning before, a couple within 10 miles, and there is nothing that protects the town from tornadoes. Tornadoes can happen pretty much anywhere.
A Tornado can destroy a village or a small town in a matter of minutes.
The Waco tornado occurred in the town of Waco, Texas.
The tornado ripped through town, destroying many homes.
Whether or not a town will be hit by a tornado on a given date is impossible to predict unless that tornado has formed and is minutes or seconds away from striking that town. However, unless the threat of a tornado is imminent the chances of any given town being hit are low.
A number of Texas towns were hit by tornadoes in 1964. The town of Wichita Falls was hit by an F5 tornado.
No. A tornado is just as dangerous in open country as it is in a town or city.
Usually a tornado can't destroy an entire town. When it does happen in will involve a very large, very strong tornado striking a very small town. In cases like this the town in question would probably be destroyed in about 5 minutes or less. Beyond that most towns would be too large to be completely covered by a tornado.
No. A tornado is a localized event, usually not affecting more than a town or two. A tornado may lead to people leaving a town, or sometimes a tornado-prone region, but not usually a country. For example, many people left the small town of Greensburg, Kansas after most of it was destroyed by a tornado in 2007, but they all stayed in the United States.
The town of Flint, Michigan was struck by a tornado that killed 116 people on June 8, 1853. Also of note is New Richmond , Wisconsin where a tornado killed 117.
The Town of Henryville, Indiana was hit by an EF4 tornado on March 2, 2012.
Oftentimes people will leave a community that has been hit hard by a tornado. For example, in 2007 a tornado destroyed 95% of the town of Greensburg, Kansas, a town 1600 people at the time. Although the town was mostly rebuilt about half of the population has moved away since then.