_ in 2002 it was proposed that car owners should pay a charge to travel into the centre of London. Fares on rail transport would also be reduced. It was hoped that more use would be made of rail travel and that congestion would decrease. Which price elasticities of demand would be necessary for this policy to be effective? 0 Quantity demanded for rail travel with respect to the price of travel by car is price-inelastic. 0 Quantity demanded for rail travel with respect to the price of travel by car is price-elastic. 0 Quantity demanded for travel by both car and rail travel is income-inelastic. 0 Quantity demanded for travel by both car and rail travel is income-inelastic