Refer to the Figure Below

Multiple Choice

Refer to the figure below. Research shows that, compared to nonurban areas, urban heat islands raise nighttime temperatures more than they raise daytime temperatures.What factor shown in the figure might account for this difference?

A) Cold air from rural areas does not enter the city at night.
B) Urban structures absorb heat during the day and give it off at night.
C) The inversion layer, which raises temperature, is present only at night.
D) Parks are not undergoing photosynthesis at night, thereby raising temperatures.
E) Suburban residential structures shield the city at night, holding warm temperatures in.