According to the chart, which statements are correct about the evolution of Brazilian social classes from 2003 to 2014? I- In 2003, about 55% of t...

According to the chart, which statements are correct about the evolution of Brazilian social classes from 2003 to 2014?

I- In 2003, about 55% of the population were in classes D/E.
II- From 2003 to 2014, there is an increase in the A/B class and a decrease in the D/E class.
III- In 2014, the poorest classes (D/E) represent approximately a quarter of the population.
IV- The chart suggests an improvement in income distribution in Brazil from 2003 to 2014.
a. I, III and IV.
b. II and III.