Question

what is the is - ought problem that hume raised as an objection to natural law theory?
natural law theory cannot account for moral progress over time
natural law theory relies too heavily on subjective intuitions
natural law theory ignores the role of emotion in moral decision - making
it is fallacious to assume that just because something is a certain way, that means it ought to be that way

Explanation:

Hume's 'is - ought problem' points out that one cannot directly derive moral prescriptions (what ought to be) from factual descriptions (what is). Natural law theory often assumes that because something is in a certain natural state (the 'is'), it should be that way (the 'ought'). For example, if it is natural for humans to be social (an 'is' statement), natural law theory might say humans ought to be social. But Hume argues this is a fallacy.

Answer:

It is fallacious to assume that just because something is a certain way, that means it ought to be that way.