Consider a scenario where a doctor has five patients who need organ transplants to survive. Another patient comes in for a routine checkup and is a perfect match for all five organs needed. The doctor could save five lives by sacrificing one healthy person without anyone knowing. Analyze this dilemma using at least three different ethical frameworks (utilitarianism, deontology, and virtue ethics). For each framework: explain its core principles, apply them to this scenario, and determine what action would be morally justified. Then, discuss how these frameworks conflict with each other and propose a potential resolution that acknowledges the complexity of real-world ethical decision-making. Your analysis should demonstrate a deep understanding of each ethical system while maintaining respect for the human elements involved.