An eighteenth-century clockmaker produced 12 identical clocks in total. At present, only three collectors of these clocks exist: X, Y and Z. The diagram displays their demand curves. X, Y and Z each begin with 4 clocks. They meet to trade among themselves. At the market clearing price (or equilibrium price), which statement is correct?
- Abuyer(s): X; seller(s): Y and Z
- Bbuyer(s): Y and Z; seller(s): X
- Cbuyer(s): X; seller(s): Z
- Dbuyer(s): Z; seller(s): X