If 4 million kegs of beer are sold, , which means that: It would be fairer for society to devote fewer resources to the production of beer. It would be fairer for society to devote more resources to the production of beer. Society is currently devoting the efficient quantity of resources to the production of beer. It would be more efficient for society to devote more resources to the production of beer. If 12 million kegs of beer are sold, , which means that: It would be fairer for society to devote more resources to the production of beer. Society is currently devoting the efficient amount of resources to the production of beer. It would be fairer for society to devote fewer resources to the production of beer. It would be more efficient for society to devote fewer resources to the production of beer. The efficient allocation of resources would result in the production of kegs of beer.

If 4 million kegs of beers are sold, marginal benefit exceeds the marginal cost, which means that :

It would be more efficient for society to devote more resources to the production of beers.

Reason :

the advantage of an additional unit of producing a good is more than the cost of producing it.hence it is good to produce more where marginal benefit equals marginal cost.

If 12 million kegs of beers are sold, marginal cost exceeds the marginal benefit, which means that :

It would be more efficient for society to devote fewer resources to the production of beers.

Reason :

the advantage of an additional unit of producing a good is less than the cost of producing it.hence it is good to produce less where marginal benefit equals marginal cost.

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1. It would be more efficient for society to devote more resources to the production of beer.

2. Society is currently devoting the efficient amount of resources to the production of beer.

Explanation:

1. If 4 million kegs of beer are sold, the marginal benefit exceeds marginal cost which means that: the society values this quantity of kegs of beer and would be more beneficial and efficient if the society devote more resources to beer production.

2. If 12 million kegs of beer are sold, where marginal cost equal marginal benefit, it means that this is a good point in which shows an efficient allocation of resources to beer production because the marginal cost of the resources is equal to the marginal benefit of each keg of beer.

C) to abolish the practice of slavery within the United States.