[Solved] The variability of sexual urges and interests is called A) the sexual response cycle. B) sexual orientation. C) the refractory period. D) erotic plasticity. Indifference Curve: A graphical representation of different bundles of goods between which a consumer is indifferent, showing levels of utility. Indifference Curves: Graphs representing different combinations of two goods that provide the same level of utility or satisfaction to a consumer. Optimal Consumption: The consumption point at which a consumer achieves the highest possible satisfaction from available resources. Loaves: Units of bread or any baked product that are shaped and sized for slicing, often made from a dough or batter.