The correct answer is - D. Baja California.
Baja California is a sovereign state of Mexico. It located in the northwestern part of the country. It is actually a peninsula that is with very small width but it's pretty long, so it has a shape similar to a needle. It is a place that is a popular tourist attraction mainly for the people that live in the far west of the United States, which use it as a weekend destination, for going to some of the local casinos, or enjoy its nightlife.