There are 4 sets of demand and supply curve ( please refer to the attateched document) . The question requires me to state the effects on consumer surplus and producer surplus if a tax is imposed on buyer for the 4 sets of demand and supply cureve.

(a) Supply is perfectly inelastic and demand is downward sloping (b) Supply is perfectly elastic and demand is downward sloping. (c) Demand is perfectly inelastic and supply is upward sloping. (d) Demand is perfectly elastic and supply is upward sloping