B. The diagram below shows the demand for and supply of petrol. The market is initially in equilibrium at point it. There is then a shift in the demand andfor supply curves, with a resulting change in equilibrium price and quantity. To which equilibrium point (a, h, c, d, e, f, g or h) will the market move from point it after each of the following changes? Priee Quantity The market for petrol (a) A rise in the cost of rening petrol (b) A fall in bus and train fares (c) A fall in the price of crude oil and an increase in the price of cars ({1} A rise in tax on petrol and a reduction in tax on cars