The dark shaded areas of the map show early agricultural sites and the light shaded band shows warmer climate areas. A map titled Agricultural Sites circa 8000 to 3000 B C E. The light shaded band shows warmer climate areas. Cooler climate areas are above and below the warmer climate areas. Agricultural sites are shaded within the warmer climate areas.

What do the dark shaded areas suggest about the agricultural revolution?

People lived in cooler climates to hunt.
People lived in warm climates to grow food.
People lived mostly in Africa to farm and hunt for food.
People lived in all parts of the world regardless of climate.