The diagram illustrates the introduction of a tariff on imports. Which combination of values is correct?
- Aimports before tariff OQ4; imports after tariff OQ3; tax revenue PUTS
- Bimports before tariff OQ4; imports after tariff OQ3; tax revenue QUTR
- Cimports before tariff Q1Q4; imports after tariff Q2Q3; tax revenue PUTS
- Dimports before tariff Q1Q4; imports after tariff Q2Q3; tax revenue QUTR