If someone earning $50,000 pays $10,000 in taxes and someoneearning $80,000 pays $20,000 in taxes, t

If someone earning $50,000 pays $10,000 in taxes and someoneearning $80,000 pays $20,000 in taxes, then over this range the taxis:
A)proportional
B)progressive
C)regressive
D)retrograde

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