3. Which of the following happens as a result of an increase in income? a. Demand is stimulated ●b. Prices fall O c. Total utility decreases o d. Marginal utility increases. ●e all of the above⚫ 3. Which of the following happens as a result of an increase in income? ⚫ a. Demand is stimulated. ⚫ b. Prices fall. ⚫ c. Total utility decreases. ⚫ d. Marginal utility increases. ⚫ e. all of the above ⚫