Elmer has been a faithful worker at the Middle America Manufacturing Company for over 30 years. One day when he comes to work, he gets called into the supervisor's office and is told that the company has decided to lay off all of its current employees and move the plant to Mexico just south of the Texas border. a. Does Elmer have any protections under the common law doctrine of employment at will? Explain. b. Does Elmer have any protections under employment discrimination law? Explain.