A job placement agency advertised that last year its clients, on average, had a starting salary of $40,000.Assuming that average refers to the mean, which ofthe following claims must be true based on this information?

Last year all of their clients had a starting salary of more than $36.000 This year some of their clients will have a starting salary of at least $40.000. Last year some of their clients had a starting salary of at least $40.000 Last year at least one of their clients had a starting salary of exactly $40.000. Last year, the number of their clients who had a starting salary of less than $40.000 was equal to the number of their clients who had a starting salary of more than $40.000. None of the above statements are true