The diagram illustrates the demand curve for a product. If rectangle OLMN has the same area as rectangle OPQR, which statement is correct?
- AA rise in price from OR to ON results in the same proportionate fall in quantity demanded.
- BConsumer surplus falls by RSMN if the price rises from OR to ON.
- CThe price elasticity of demand is unitary for all changes in price.
- DTotal revenue falls by MSQ if the price rises from OR to ON.