List in Order of Increasing Size: Cl^-, Ar, K⁺, S^2-

List in order of increasing size: Cl^-, Ar, K⁺, S^2-, Ca²⁺.

A) Ca²⁺ < K⁺ < Ar < Cl^- < S^2-
B) S^2- < Cl^- < Ar < K⁺ < Ca²⁺
C) Ca²⁺ < S^2- < K⁺ < Ar < Cl^-
D) Cl^- < Ar < K⁺ < S^2- < Ca²⁺
E) K⁺ < S^2- < Ar < Cl^- < Ca²⁺