Final answer:
The answer is option 1, as Country A's higher literacy rate and primary export of petroleum are key indicators of a higher standard of living, whereas the land size and population size of Country B do not inherently suggest such. 4) Cannot be determined from the given information.
Step-by-step explanation:
In determining which country has a higher standard of living, Country A or Country B, based on the given statements, the correct answer is option 1. Country A has a higher standard of living because of its higher literacy rate and primary export of petroleum. These factors are more directly linked to a country's wealth and educational status, which are key indicators of standard of living. A higher literacy rate suggests better educational outcomes and greater access to information, while petroleum export indicates economic strength and resource wealth.
By contrast, a larger land area and higher population, as in Country B, do not inherently suggest a higher standard of living. These aspects do not directly contribute to individual wealth or quality of life. Similarly, a warmer climate and lower rainfall in Country A may contribute to a comfortable living environment but do not determine standard of living on their own. The standard of living is a complex measure typically assessed through economic data, health, education, human rights considerations, and access to goods and services.The correct option is: 1) Country A has a higher standard of living because of its higher literacy rate and primary export of petroleum.