An urn contains four black and eight white balls. Three balls are drawn from the urn without replacement. Three events are defined on this experiment. A: Exactly one black ball is drawn. B.: All balls are drawn are of the same color. C: Third drawn ball is black. Match the entries of column I with none, one or more entries of column II. Column I, Column II The events `Aa n dB` are, p. mutually exclusive The events `Ba n dC` are, q. independent The events `Ca n dA` are, r. neither independent nor mutually exclusive The events `A ,Ba n dC` are, s. exhaustive