 Boris Kment (2021) puts forward an account of modal knowledge based on his own modal metaphysics (2014). On Kment’s metaphysical framework, modal facts are partially grounded in what he calls metaphysical laws, which also comprise essentialist truths. Thereby, much of our modal knowledge for Kment depends on knowledge of the metaphysical laws, including essentialist truths. Kment discusses two ways in which we may acquire knowledge of such laws (i.e., two ways to answer  question (b)  above). First, abductively, via inference to the best explanation (IBE). Second, we may come to know the metaphysical laws by relying on our conceptual or linguistic competence.