A fully rated system is one in which all the overcurrent protective devices in an electrical distribution system and the utilization equipment have an individual interrupting rating at least as great as the available fault current at their point of application. This is essentially required by NEC?.

a$.$ Article $100$ definition

b$.110\mathrm{.}3($B$)$

c$.110\mathrm{.}9$

d$.240\mathrm{.}86$