Does an increase in GDP per capita of a nation imply that all its citizens have become​ richer?
A. ​No, because the average income per capita does not give as good a measure as the purchasing power parity​ (PPP) of the average citizen in a nation.
B. ​No, because the average income per capita of a nation is not the same as the income of each individual in that nation.
C. ​Yes, because an increase in the average income per capita means that purchasing power parity​ (PPP) has also​ increased, making all citizens richer.
D. ​Yes, but only if the average is above the poverty level of​ $1.25 per day.