Explain what would happen to the quantity demanded of cars, of the demand for cars if the following occurred: (Be sure to indicate whether there is a movement along or shift in the demand curve) a. The price of petrol has increased by 20%. b. People prefer commuting by MRT. C. The legal age for obtaining a driving license has been lowered from 21 to 18 years. d. The economy registers negative economic growth of 10% for the year. e. The price of COE plunges leading to a fall in the price of cars. Bus rides become 30% cheaper. g. People expect a 20% fall in the price of cars in the next two months