What does comparative advantage have the most influence on?

a. capital
b. labor
c. resources
d. specialization

The answer is D: Specialization.

A comparative advantage is the sole focus of those goods for which a country’s resources are most for. It is applied to nations to determine which goods or services they should specialize in producing. David Ricardo, an English economist, was associated a lot with comparative advantage. He considered what goods and services countries should produce. He also suggested that countries should specialize by allocating their limited resources to produce goods and services for which they have a comparative cost advantage.

since there isn't any suggested answers i will give you the reason and hopefully you can figure it

south africa, or rather all of africa, has not been in the location in which it is nowadays throughout the geological past. after the super-continent pangaea started to break apart, gondwanaland, in which was africa, moved further south, and parts of it came to be very close to the south pole. because the climate in this part of the world is very cold due to the very dispersed sun rays in there, what is now south africa, started to freeze, and the conditions were right for the formation of glaciers. the glaciers existed up until the period when gondwanaland started to break apart and what is now africa started to move towards north, sp it warmed up and the glaciers melted.