D. They worked as agriculture laborers.
The only change I know of was the silk road, where they had to build roads and clear forests so that traders could go through. I don't think any other geography changed during that era.
Answer:
East Texas pine-hardwood region
Explanation:
The East Texas pine-hardwood region, often called the Piney Woods, is the principal forest region in Texas.
Answer: D. They are always small groups composed of just a few people.
Explanation: Drug cartels are never composed of a few people. There is always a chain with a few people at the top of that chain.