Consider the Isotherm Map of the United States Shown Above

Multiple Choice

Consider the isotherm map of the United States shown above. Which of the following statements best describes the area between Las Vegas, NV, and Palm Springs, CA?

A) One would expect to encounter a temperature of 40°F if driving from Las Vegas to Palm Springs.
B) This area exhibits one of the lowest temperature gradients on the map.
C) The average temperature in this area is below freezing.
D) This area exhibits one of the greatest temperature gradients on the map.