A tech company discovers its supply chain involves labor violations in developing countries. Which ethical framework can guide them in making responsible sourcing decisions?

a$)$ Utilitarianism maximizing utility for the greatest number of people.

b$)$ Deontology focusing on adhering to ethical principles and rules.

c$)$ Virtue ethics emphasizing character traits and moral judgment.

d$)$ Stakeholder theory considering the interests of all affected parties.