14. If a 8 percent increase in income results in a 10 percent increase in the quantity demanded of lattes, what is the income elasticity of demand for lattes, and what type of good is a latte? a. negative, and therefore a latte is a normal good 1). positive, and therefore a latte is a normal good c. negative, and therefore a latte is an inferior good d. positive, and therefore a latte is an inferior good