3. Which of the following is an isoelectronic series? \text { A) } \mathrm{B}^{5-}, \mathrm{Si}^{4-}, \mathrm{As}^{3-}, \mathrm{Te}^{2-} \text { B) } F^{-}, C l^{-}, B r^{-}, I^{-} \text { C)

S, Cl, } \mathrm{Ar}, \mathrm{K} \text { D) } \mathrm{Si}^{2-}, \mathrm{P}^{2-}, \mathrm{S}^{2-}, \mathrm{Cl}^{2-} \text { E) } O^{2-}, F^{-}, \text {Ne, } N a^{+}