In the diagram, the supply curve indicates the number of parking spaces in a car park, while the demand curves show demand for spaces on four separate days (D1, D2, D3 and D4). The owner wants to impose a parking fee on each of these days so that the spaces are allocated through the market mechanism. Which pricing policy should the owner choose?
- Aset a fixed price at P1
- Bset a fixed price at P4
- Cvary prices between P2 and P3
- Dvary prices between P1 and P4