How Did the World's Per Capita Income and the Degree

How did the world's per capita income and the degree of income inequality change between 1800 and  1980?

A) Per capita income expanded by approximately tenfold and income inequality increased.
B) Per capita income expanded by approximately tenfold and income inequality declined.
C) The per capita income of the world was virtually unchanged and income inequality declined.
D) The per capita income of the world declined, but the income was distributed more equally.