Which Tax Structure Would Be an Example of a Progressive

Multiple Choice

Which tax structure would be an example of a progressive tax?

A) $10,000 in taxes collected on $50,000 of income, and $20,000 in taxes collected on $100,000
B) $5,000 in taxes collected on $30,000 of income, and $9,000 in taxes collected on $60,000
C) $20,000 in taxes collected on $80,000 of income, and $40,000 in taxes collected on $160,000
D) $4,000 in taxes collected on $20,000 of income, and $10,000 in taxes collected on $40,000