Which statement best synthesizes the information from these two sources?

Source 1: Studies show that cities have been getting hotter in the past
couple of decades.

Source 2: Neighborhoods with a lot of trees tend to be cooler than
those without them.

A. Trees provide natural beauty in the city and also keep streets
cooler by providing shade.

B. City pools must remain open to provide a safe space for children
and adults to stay cool.

C. Our city should plant more trees to help residents stay cool in the
summer months.

D. We should make sure all residents have access to air-conditioning
in the summer.