a. What are the major determinants of price elasticity of demand? Instructions: In order to receive full credit, you must make a selection for each option. For correct answer(s), click the box once to place a check mark. For incorrect answer(s), click the option twice to empty the box. 7 Inferior goods and normal goods ? Time ? Excise taxes ? Proportion of income ? Availability of complementary goods ? Luxuries versus necessities ? Substitutability b. Use those determinants and your own reasoning in judging whether demand for each of the following products is probably elastic or inelastic: Bottled water: (Click to select) Toothpaste: (Click to select) Crest toothpaste: (Click to select) Ketchup: (Click to select) v Diamond bracelets: (Click to select) Microsoft's Windows operating system: (Click to select)