IUPAC name of `K_(3)[Fe(CN)_(6)]` is

The IUPAC name of K_(4)[Fe(CN)_(6)] is

Which option is True (T) and False (F) for IUPAC name of K_(3)[Fe(CN)_(6)] ? (i) potassium hexacyanido ferrate(III) (ii) tripotassium hexacyanido ferrate (iii) potassium haxacyanido ferrate (-3) tripotassium hexacyanido ferrate (III)

Which of the following is the IUPAC name of K_(4)[Fe(CN)_(6)] ?