B. A farmer experiments to learn which crops to grow best in his soil.
Explanation:
<u>Before the Neolithic revolution, humans lived in nomadic societies and had two main preoccupations</u> - <em>hunting </em>and <em>gathering</em>.
They were organized in such a way that gatherers gathered wild fruits, shellfish, vegetables etc. while hunters (predominantly men) hunted wild animals.
<em>The Neolithic revolution</em> represents <u>a change from nomadic to settled life. </u>People became familiar with agriculture and domestication of animals and plants. This led to settlement, since they found a way to produce and satisfy their needs themselves and <u>didn't need to look for them </u>no longer.
