The Relative Equality of Per Capita Incomes Throughout the World

Multiple Choice

The relative equality of per capita incomes throughout the world before the 19^th century was due to the fact that:

A) virtually all economies grew at similarly high rates.
B) population growth was much more similar in all countries.
C) no country had ever grown very fast.
D) None of the above; per capita incomes across countries were much less equal before the 19^th century than they are today.