Sanjay, an engineer at a major technology firm, earns $50,000 per year. He thinks that having an MBA degree will increase his chances of being promoted to a management position. He is trying to decide whether to enroll in a part-time evening program that will take two years or in a one-year full-time MBA program. Identify the factors that Sanjay should consider in making this decision. What are the opportunity costs of each alternative?