Final answer:
The most ethical response would be to turn the train onto the track with one person to save the four workers based on utilitarianism. However, alternative perspectives such as deontology and virtue ethics may create more complexities in making the decision.
Step-by-step explanation:
The most ethical response to this situation, in my opinion, would be to turn the train onto the track with the one person working, in order to save the four workers repairing the main track. This is based on the principle of utilitarianism, which focuses on maximizing overall happiness or utility. By turning the train onto the track with one person, you minimize the overall harm caused since fewer lives would be lost.
However, there are alternative perspectives that can make this decision harder or easier to make. For example, from a deontological perspective, which emphasizes following moral rules and duties, it may be seen as wrong to intentionally cause harm to one person to save others. Another alternative is the virtue ethics approach, which focuses on developing virtuous character traits. In this case, a virtuous person might prioritize the safety and well-being of all individuals involved and try to find an alternative solution to avoid harm altogether.
Ultimately, the ethical response to this situation may vary depending on the ethical theory or framework one applies, as well as personal values and beliefs.