Refer to the table below that describes the income distribution in a country. Population Cumulative Percentage Population Income Poorest 20% 20 5 Next 20% 40 10 Next 20% 60 25 Next 20% 80 60 Richest 20% 100 100 In this country, the richest 40% of the population earn of the total income; while the poorest 40% of the population earn of the total income. a) 40%; 15% b) 40%; 10% C) 60%; 15% d) 75%; 10% 75%; 15%