My best bet would be B. the US and spain both had control over economic trade and stuff.
Answer:
<h3>The Neolithic Revolution had a big impact on humans. It allowed people to stay in one place, which meant they were able to farm, cultivate crops, and domesticate animals for their own use. It also allowed humans to develop a system of irrigation, a calendar, plows, and metal tools</h3>
Hitler thought the Jews were lesser race