<u>Answer:</u>
<em>Scarcity of resources</em><em> happens when the resources are unable to meet the unlimited demands and needs.</em>
<u>Explanation:</u>
Marginal utilisation of resources it is a method in which resources are utilised such that it doesn't over exploit them. And use them mindfully do to avoid any kind of scarcity in future and optimal usage of resources in the present as well as future.
Alternatively these resources can be utilised by proper allocation of resources such that alternative products can be formed using the same amount of resources.
B.The Oregon Border, because the US claimed all of it from Britain.
Hope this helps :)
The correct answer is slavery
Slavery, is the social practice in which a human being acquires property rights over another called a slave, to whom this condition is imposed by force.
In some societies, since the most distant times, slaves were legitimately defined as a product. Prices changed according to physical conditions, professional skills, sex, age, origin and destination.
When we speak of slavery, it is difficult not to think of the Europeans who overcrowded the holds of their ships of men brought from Africa regardless of their wills and who were put up for sale in an inhuman and cruel manner throughout America.