16. You are thinking about going to graduate school to earn a master's degree, which you hope will allow you to earn more money. Which of the following is NOT an incremental cash flow associated with your decision to extend your schooling versus going into the workforce when you finish your undergraduate degree? A) the cost-of-living expenses, such as rent and food, while you are in graduate school B) the cost of tuition C) the lost income you could have earned by working rather than staying in school D) the cost of books and other supplies required for your graduate studies