A number of treaties incorporate the universality principle in a limited way regarding such issues as genocide, drug trafficking, trafficking in women and children, counterfeiting of currency, taking of hostages, torture, apartheid, attacks on diplomats, and hijacking. However, contrary to their being delicts jure gentium (which can be tried by all States), these crimes are dealt on the principle of aut punire, aut dedere. Accordingly, offenders are either to be punished by the state where they are found or to be surrendered to the state, which is competent and willing to exercise jurisdiction over them. However, slave trade is treated as "delicts jure gentium," and prosecuted on the basis of the universality principle. The correct answer is C.