I 11 LII Base Base Ba se IV Base Base Tax (income) Tax (income) Tax (income) Tax (income) Tax (income) $30 $ 100 $10 $100 $ 5 $100 $ 30 $100 $ 10 $100 50 200 20 200 15 200 60 200 30 200 60 300 30 300 30 300 90 300 60 300 70 400 40 400 50 400 120 400 100 400 QUESTION 74 Which of the above schedules represent(s) a proportional tax? A. I only B. IV only D. II and IV III and V