Concept:The word "spendthrift" describes a person who spends money carelessly or wastefully.Explanation:A spendthrift uses money in a reckless or extravagant way, often without thinking about the future.For example: "Despite earning a good salary, John was a spendthrift and often ended up borrowing money by the end of the month."Option A correctly defines this meaning.Option B describes an investor, option C a saver, and option D a borrower — none of these match the definition of spendthrift.Answer:A. person who spends money recklessly