For most minerals, the strength of cation adsorption, or lyotropic series, is

Answer: Option B

For most minerals, the strength of cation adsorption, or lyotropic series is
$$\mathbf{A}{\mathbf{l}}^{3+}>\mathbf{C}{\mathbf{a}}^{2+}>\mathbf{M}{\mathbf{g}}^{2+}>{\mathbf{K}}^{+}{=\mathbf{NH}}_4^{+}>\mathbf{N}{\mathbf{a}}^{+}$$
The arrangement of anions and cations according to their ability to modify the properties of other solutes such as proteins is termed as Lyotropic series however Lyotropy refers to concentration-dependent physical effects in solutions and often more specifically to ion-specific behaviour in aqueous solution.