Q: In this task, you will use your knowledge about language (and common sense) to determine what element the marked number refers to. The numbers are marked with two underlines around them, like: _ number _. There are several possible answers, you'll need to choose the proper one. Carefully read the given text, pay special attention to the marked number, think about what (unwritten) information the marked number holds inside, choose the most adequate word(s) from the optional answers. If none of them seems right to you, there's also an option for other. If your answer is "REFERENCE", also write the reference entity, otherwise write the implicit option name. Options to choose from are:
REFERENCE: Some object which is being mentioned in the text before or after the target number. The reference answer has a higher priority than any other. If both Reference and another answer are possible, prioritize the Reference.
YEAR: Describing a calendric year
AGE: Describing someone's age
CURRENCY: Reference to some monetary value e.g dollar, euro etc.
PEOPLE: Describing a single/plural persons
TIME: Describing a time of the day. Usually you can add the word o'clock after those numbers.
OTHER: Some other option, which isn't listed here.
Marquise de Merteuil:  When I came out into society , I was _ fifteen _ . I already knew that the role I was condemned to , namely to keep quiet and do what I was told , gave me the perfect opportunity to listen and observe . Not to what people told me , which naturally was of no interest , but to whatever it was they were trying to hide . I practiced detachment . I learned how to look cheerful while , under the table , I stuck a fork into the back of my hand . I became a virtuoso of deceit . It was n't pleasure I was after , it was knowledge . I consulted the strictest moralists to learn how to appear , philosophers to find out what to think , and novelists to see what I could get away with . And in the end , I distilled everything to one wonderfully simple principle : win or die .
A:
AGE