(a) A rise in the cost of refining petrol (H)
(b) A fall in bus and train fares (B)
(c) A fall in the price of crude oil and an increase in the priceof cars(E)
(d) A rise in tax on petrol and a reduction in tax on cars(A)
163-a 170-c 177-b 184-d
164-b 171-a 178-d 185-b
165-b 172-c 179-d 186-d
166-a 173-b 180-c
167-a 174-c 181-c
168-b 175-d 182-b
169-b 176-c 183-a
187-b 193-c 199-c 205-c
188-b 194-b 200-d 206-b
189-b 195-c 201-b 207-d
190-a 196-a 202-c
191-a 197-a 203-d
192-b 198-a 204-a