Which of the following characteristics are associated with a retail lockbox?

I. A low volume of large$-$dollar B$2$B payments

II$.$ Timely access to information about available funds and the invoices being paid

III. A primary objective of minimizing processing cost

IV$.$ A primary objective of float reduction

a$.$ I and IV only

b$.$ I, II$,$ and III only

c$.$ I, II$,$ and IV only

d$.$ I, III, and IV only