The answer is: D. An increase in literacy rates can lead to a higher standard of living
Literacy rates affect how well people would be able to learn new and a more advanced skills. This mean that higher literacy rates would give the countries in latin america more high-skilled labours.
The more high-skilled labours that a country have, the more efficient the production that they can do, leading up to an increase in GDP and higher standard of living for people in that area.
