Choice A, "The standard of living decreases in countries with lots of resources," is not generally correct. In fact, countries that are rich in resources often experience higher standards of living, at least in terms of access to wealth and potential economic development. However, the situation can be complex due to factors like mismanagement, political instability, or the "resource curse," where countries with abundant resources may not necessarily achieve better economic outcomes or standards of living.
So, while there can be exceptions based on specific contexts, as a general statement, choice A does not accurately reflect the typical outcome of uneven resource distribution. The main outcome remains that countries need to trade to acquire necessary resources.