Hold Louisa's preferences for burgers and Sprite constant. Suppose Louisa's income, as well as the prices of burgers and Sprite, double. As a result, Question 46 options: a) Louisa's indifference curves change, but her budget constraint does not change. b) neither Louisa's indifference curves nor her budget constraint change. c) both Louisa's indifference curves and her budget constraint change. d) Louisa's budget constraint changes, but her indifference curves do not change