The correct option is A High standard of living
When the real per capital income is high it directly result in the high standard of living because material thing are a key element of economic well-being. A country that is able to produce more resources is usually able to obtain more important things like food, shelter, luxury etc. High national income refers to a greater flow of goods and services in the economy. It leads to the prosperity of the people. People enjoy good health besides being highly educated.