Much more mixed cultures eg brazil. industrilisation of most cultures who used slavery through cheap labour that benifited the society eg russia but also at a great cost usually death disease and social unrest
Through Adam's sin, man became susceptible of disease and death as a punishment for his sin. He passed this condition to his children, which is the entire humankind, and now we all pay for our sins through death. We become sinners even before we were born, and of course before we could choose to sin or not, and therefore we pay for them with our immortality.
Opportunity cost is the value of the next best alternative forgone as a result of making a decision.
I know that it was cheap land so it would be A or D to my best judgement. Are you good at math?