Answer:
Option (B)
Step-by-step explanation:
Chicago and Miami are both the cities in the United States, where Chicago is at a higher elevated area, whereas Miami is located in a low lying areas.
Chicago is located at an elevation of about 180 meter above the sea level, which is comparatively much higher than Miami, as Miami is at the coastal areas whose elevation is only about 2 meter above the sea level.
So, from the map it can be concluded that as Jessica travels from Chicago to Miami, it means that the elevation gradually decreases.
Thus, then correct answer is option (B).