question content area part 1 the income effect of an increase in the price of salmon part 2 a. refers to the effect on a​ consumer's purchasing power which causes the consumer to buy less​ salmon, holding all other factors constant. b. refers to relative price effectsalmon is more expensive compared to other types of fishwhich causes the consumer to buy less salmon. c. is the change in the demand for other types of​ fish, say​ trout, that results from a decrease in purchasing power. d. is the change in the demand for salmon when income increases.