Other factors that have caused the level of income inequality to remain at an extremely high level include: Question 6 options: a) taxes on the top 1% of the economic distribution declined from about 45% in 1944 to about 36% in 2016. b) taxes on the bottom 50% of the economic distribution during the same period rose from about 15% to 24%. c) none of the above are true. d) only a above is true. e) both a and b are true