Option a is the correct answer. The cultivation of cereals first started in the Neolithic Age, which is also known as the New Stone Age. The Neolithic Age is the period of human history when people began to practice agriculture and domestication of animals. The Neolithic Age lasted from about 10,000 BCE to 3,000 BCE. Important Tips The origin of cereal cultivation can be traced back to the Fertile Crescent, a region in the Middle East that includes parts of modern-day Iraq, Syria, Turkey, and Iran. The Fertile Crescent is often referred to as the birthplace of agriculture, as it is where the earliest evidence of crop cultivation has been found. Some of the first cereal grains that were domesticated by early primitive humans were emmer wheat, einkorn wheat, and barley