Jerry had owned a small printing shop in the same location for over 25 years. For most of the quarter of a century he had had medical insurance coverage for all his employees. The policy was periodic, renewable once each year. As Jerry’s employees aged, however, he found the insurance premiums on those 55 and over were extremely costly. As a consequence, he instituted a new rule that he would only pay an amount on each employee’s premium equal to a 30 year old’s premium. If the employees wanted health insurance through the company, they would have to pay the balance if there were one. What type of discrimination does this constitute? Identify the protected class and the form the discrimination takes.