The diagram illustrates the demand curve for a product with unitary price elasticity. What will happen to this curve?
- AA fall in price will bring about an increase in total expenditure on the product.
- BA fall in price will bring about an increase in sales but a fall in total expenditure on the product.
- CAs the price rises, total expenditure on the product will stay the same.
- DAs the price rises, total expenditure on the product will rise and then fall.