This Partial Image of North America Represents: 1

This partial image of North America represents: 1. A satellite view of the continent taken during the day to highlight areas of bright sunlight. 2. The areas in yellow represent major metropolitan areas.
3. The areas in yellow represent major human population centers.

A) 1 only
B) 2 only
C) 3 only
D) Both 2 and 3 can be interpreted from the image.