Choose the statement that is correct. O A. The world Gini ratio in 2011 was 0.31. O B. The world Gini ratio shows a downward trend between 1970 and 2005. c. Between 1970 and 2005, average incomes in poorer countries rose much slower than average incomes in rich countries. 0 D. Between 1970 and 2005, world incomes became more unequal