Felony murder statutes differ from statutes of other forms of murder in that they hold a person liable for the murder___________
a. in a federal court, after hearing the case, concludes that the murder was premeditated
b. only if the killing was intentional
c. only if there is a concurrence of mens rea and the act, as well as concurrence of mens rea and the resulting harm
d. even if the killing was unintentional