The demand for a commodity is price elastic with unitary price elasticity. Which diagram illustrates the link between total expenditure on the commodity and its price?
- A[IMAGE:9708_s10_qp_13_p3_diagram_6]
- B[IMAGE:9708_s10_qp_13_p3_diagram_5]
- C[IMAGE:9708_s10_qp_13_p3_diagram_4]
- Ddiagram D