The price-consumption curve shows (select all that applies) ( a) the utility-maximising combinations of two goods as the prices of both goods change ( b) the quantity of one good consumer is willing to buy as the consumer's income changes ( c) the utility-maximising combinations of two goods as the price of one good changes ( d) the quantity of one good consumer is willing to buy as the price of the other good changes ( e) the difference between what a consumer is willing to pay for a good and the amount actually paid