In which of these cities is the famous street known as "The Strip"?

Known officially as Las Vegas Boulevard, the Las Vegas Strip is the most recognizable street in Las Vegas. It is home to the most famous hotels and casinos in the city, which makes it one of the most photographed and visited avenues in the world. The Strip is approximately 3 miles long. Besides being home to the best hotels, the Strip always has a special ambiance. For a large part of the day, the hotels offer fantastic shows, such as the incredible Fountains of the Bellagio.

Source: Introducing Las Vegas