What Is the Natural Law Theory of Ethics

What is the natural law theory of ethics?

A) The view that morality consists in obeying laws that cannot reasonably be rejected because they arise from human nature.
B) The view that morality consists in following our natural impulses, which are seen as coming directly from God.
C) The view that morality consists in a set of laws that can be discovered either through divine revelation or through careful study of the natural world.
D) The view that morality consists in promoting things that are good for humans, which can be identified through consideration of human nature.