Complex ion $\left[{\mathrm{FeN}}_3\left({\mathrm{O}}_2\right){\left({\mathrm{SCN}}_4\right]}^4\right.$is named as (coordination number of central metal ion in complex is six)

Complex $\left[\mathrm{Fe}\left({\mathrm{N}}_3^{-1}\right)\left({\mathrm{O}}_2^{-1}\right){\left({\mathrm{SCN}}_4^{-4}\right]}^{4-}\right.$ is named as Azidosuperoxidotetrathiocyanato-S-ferrate(ll) the coordination number of central metal ion in complex is six.

Hence, option A is correct.