12. which resource first attracted portuguese explorers to the region of west africa?
a. copper
b. iron ore
c. hardwoods
d. gold

Gold resource first attracted Portuguese explorers to the region of West Africa.

Option D

Explanation:

Although it was not a part of their agenda, the Portuguese exploring the West African coast was an unexpected expedition. The west African countries like Ghana, Benin, Songhai, Mali and Kongo boasted a rich history of civilizations.

The arrival of the Portuguese created a demand for gold in Portugal as West Africa boasted a lot of gold reserves, leading to supply of gold resources from West African nations to Portugal. It was shipped directly.

the correct answer is “opportunity cost”. opportunity cost is what a company misses out because it decided in one option over another one. in this case, the company decided to invest in building a factory so it gave up another possible benefit or profit in order to achieve success with the factory.  

trade-off is not the correct answer since it is a situation in which you accept losing something in return for benefits in other areas.

and finally, consequence is a general term used to accept what it comes when you make a decision. it can be a positive or negative consequence depending if the decision you took was the correct one.