Motorists have been given an early Christmas present after the Department of Mineral Resources and Energy announced decreases in the prices of petrol and diesel on Friday. The department said that both grades of petrol would decrease by 65 cents per litre while diesel would decrease by between R2.35 and R2.41 per litre." A ceteris paribus decrease in the price of petrol will have which of the following impacts in the market for consumer goods? A. the supply curve for consumer goods shifts to the left. B. the supply curve for consumer goods shifts to the right. C. the demand curve for consumer goods shifts to the left. D. the market for consumer goods will not be affected by a change in the price of petrol