North Andover High School student and Merrimack Valley YMCA Youth and Government participant Elizabeth Mastromonaco was chosen as one of only 24 delegates from across the state to attend the 51st annual Conference on National Affairs (CONA) at Blue Ridge Assembly in North Carolina. CONA is the nationwide culmination the Youth and Government program, which brings together the top students from each state to debate proposals on issues facing our nation and the world.