The group having isoelectronic species is :

Question

( A ) $O^{-}, F^-, Na, Mg^{+}$
( B ) $O^{-}, F^-, Na^+, Mg^{2+}$
( C ) $O^{2-}, F^-, Na^+, Mg^{2+}$
( D ) $O^{2-}, F^-, Na, Mg^{2+}$