The diagram illustrates how the number of passengers changes when a company lowers the fare for a train trip from OP1 to OP2. Which areas represent the consumer surplus at the new fare for the original passengers and for the extra passengers?
- Aoriginal passengers: v; additional passengers: y
- Boriginal passengers: v + w; additional passengers: y
- Coriginal passengers: v + w + x; additional passengers: y + z
- Doriginal passengers: x; additional passengers: z