a person's income goes up during a period of time by 19 percent. Over the same period, the quantity of product x that the person busy increases by 11 percent. Which of the following statements is true? Product x is neither a necessity nor a luxury good to this person. b. Product x is a luxury good to this person. c. product x is both a necessity and a luxury good to this person. d. produt x is a necessity to this perosn