Incorrect Question 10 0 / 1 pts The Congressional Budget Office (CBO) and economists Emanuel Saez and Gabriel Zucman analyze the average taxes. In particular, they find (select all that apply): O Since the 1980s average federal taxes have remained relatively constant for the top 1% (fluctuating around 30%%) according to the CBO. Since the 1980s average federal taxes have been falling for the bottom 20%% from around 10% to under 5%, according to the CBO. O In 2018 the average tax rate for all income percentiles was around 28%, according to Saez and Zucman. V Since the 1950s the gap in average tax rates between the top 0.01% and the bottom 90% has increased, according to Saez and Zuman