When an excess and a very dilute aqueous solution of KI is added to a very dilute aqueous solution of silver nitrate, the colloidal particles of silver iodide which are associated with Helmholtz double layer are

Options

A. `AgI: Ag^(+) :I^-`
B. `AgI: K^(+) :NO_3^-`
C. `AgI:NO_3^(-): Ag^(+) `
D. `AgI:I^(-): K^(+) `