Spain Allows Trade with the Rest of the World

Multiple Choice

Spain allows trade with the rest of the world.We know that Spain has a comparative advantage in producing olive oil if we know that

A) Spain imports olive oil.
B) the world price of olive oil is higher than the price of olive oil that would prevail in Spain if trade with other countries were not allowed.
C) consumer surplus in Spain would exceed producer surplus in Spain if trade with other countries were not allowed.
D) All of the above are correct.