Each copper equipment grounding conductor shall be sized on the basis of the ampere rating of the overcurrent device protecting the circuit conductors in the raceway, therefore, what would be required given the circuit is protected by 250 kcmil raceway conductors fed from 2,000-ampere circuit breaker?
a) 250 Kcmil
b) 4/0 AWG
c) 3/0 AWG
d) 2 AWG