Land. You can buy land and use it for producing but a human cannot make land. You can make a capital (how do you think America was made) and make goods and entrepreneurship (skills)
The correct answer is letter A. oil. Westerners are interested in Middle East's supply of oil. In the whole world, Middle East the primary source of oil that supplies a lot of countries, not only in some parts of Asia but as well the Western part of the globe. It has a large oil deposits.
Ghana traded its gold for all of the following choices given in the question except camels. The correct option among all the options that are given in the question is the third option. Ghana is an African nation that lies on West Africa's Gulf of Guinea. I hope the answer has helped you.