Final answer:
Divine commandments are considered genuine moral knowledge according to the theist viewpoint, as they are believed to be determined by God's authority which supersedes human reasoning.
Step-by-step explanation:
According to the theist perspective, an example of moral knowledge that is known as genuine knowledge would be B) Divine commandments. Divine command theory posits that what is good is determined by God's commands, and these commands can include revealed scriptures such as the Ten Commandments. This view is based on the idea that moral values come from a divine source, which could supersede human reason and provide a clear guide on what is considered morally right or wrong. This is contrasted with scientific laws (A), social conventions (C), and personal preferences (D), none of which rely on a divine authority for their establishment.