Four electricians are discussing different wiring methods. Electrician A says that because the conduit body indicates its capacity in cubic inches, splices can be used within the conduit body. Electrician B says that the conductors must be installed before the raceway is complete. Electrician C says that the conduit body must be installed where the conductors are contained in wiring methods with removable covers. Electrician D says that the conduit body must be installed at every splice point. Who is correct