Carol is a school teacher at happy child school. at the end of the school year she received a letter from the principal stating that she had been chosen the "teacher of the year" and would be receiving a $5,000 bonus for her outstanding work. carol immediately phoned the principal and him for the bonus, which she had not expected since she did not even know that such an award existed. two weeks later the principal sent another letter to carol letting her know that due to a budget problem she would not be getting the bonus. if carol should go to court to collect the bonus a court would probably rule for: