To identify which city experiences a polar climate based on the given chart, we need to understand the characteristics of a polar climate. Polar climates are defined by consistently low temperatures throughout the year.
Reviewing each city's average annual temperature:
- City A: 117°F
- City B: 78°F
- City C: 55°F
- City D: 15°F
- City E: 100°F
From this data, we can see that City D has the lowest average annual temperature at 15°F, which is significantly lower than the temperatures of the other cities.
Therefore, City D experiences a polar climate.
The correct answer is:
D. city D