Correct Option: A

Some goods are known as inferior goods. With inferior goods, there is an inverse relationship between real income and the demand for the good in question. If real incomes rise, the demand for an inferior good will fall. If real incomes fall (in a recession, for instance), the demand for an inferior good will rise. Example: Bus travel. As people get richer, they are more likely to buy themselves a car, or use a taxi, rather than rely on the more inferior bus, so the demand for bus travel falls as real incomes rise.