In Which of the Following Countries Would an Economist Describe

In which of the following countries would an economist describe income inequality as being greatest?

A) Half of the country's citizens earn $50,000 per year, and half earn $10,000 per year.
B) Half of the country's citizens earn $30,000 per year, and half earn $3,000 per year.
C) Half of the country's citizens earn $10,000 per year, and half earn $3,000 per year.
D) Half of the country's citizens earn $100,000 per year, and half earn $50,000 per year.