Of the following, which would likely be classified as a Type II subsequent event?

a. Collection of receivables in amounts substantially different from amounts recorded at the balance sheet date.

b. Realization of a loss on the sale of an investment when the subsequent sale confirms a previously existing unrecognized loss.

c. Discontinuance, at an estimated loss, of operations of a subsidiary where the contributing circumstances developed prior to year end.

d. A business combination accounted for as a pooling of interests.

Choose the correct answer.