The answer to this question is B. You can tell that it is New York that is experiencing thundershowers because of the design placed on the map. A thundershower is similar to a rainstorm, but the main difference is that it comes with thunder and lightning. A lot of people consider this dangerous especially because bolt tends to hit from time to time.
There are already many stories of people who are in a place that was hit by lightning. Some were even hit by lightning. People are advised to stay somewhere safe while a thundershower is taking place. In most cases, a thundershower is considered to be more dangerous than a tornado probably because of the number of people who get affected by it when it comes.