Final answer:
Immanuel Kant's ethical theory is categorized as a deontological approach to ethics and focuses on fulfilling one's moral duties or obligations. It does not emphasize acting in perceived self-interest.
Step-by-step explanation:
Immanuel Kant's ethical theory is categorized as a deontological approach to ethics. Deontological approaches focus on fulfilling one's moral duties or obligations to determine whether an act is morally right. Kant believed that morality consists of rules or categorical imperatives that any rational being can and should accept as norms of rational conduct. These categorical imperatives can be derived by determining which rules for ethical behavior we might wish to apply universally without exception. Therefore, option a) is true. Option b) is false because Kant's theory is not a consequential theory of ethics. Option c) is true because it is a deontological approach. Option d) is false because Kant's theory does not emphasize acting for perceived self-interest.