Ana lives with her parents and attends the local college. The college is operated by the state and lessons are free. Jobs that pay 7 EURO an hour are available to high school graduates in the town. Ana's mother, a high school graduate, takes a part-time job so that Ana can go to school. Ana's textbooks cost 280 EURO and Ana gets an allowance of 140 EURO per month from her mother. List the items that make up the opportunity cost of Ana attending school.