D he worked writing books and inheriting money but also ran a plantation so thats why I think thats the answer.
Answer:
He traveled to the Americas for various reasons, one thing that Columbus did was in a way start the Columbian exchange where things such as food, plants, livestock, and diseases were spread into the Americas that were never there before.
Answer:
Explanation:
Remark
Let's look at the two that you can eliminate without much worry. B and C are not going to say much about ecofriendly technologies.
It's between the New Science Lab and A record of Operational Data. The Operational Data might given you a hint about the need to reduce costs, but it won't say much about how to do it.
I would pick D. The science lab has the best chance of employing alternate ways of looking for cost control using ecofriendly technologies. It is a lab after all, and that is the first place one should seek the most modern ideas.