Corporation A receives a dividend from Corporation B. Corporation A includes the dividend in its gross income for tax and financial accounting purposes (no book-tax difference). If A has accounted for the dividend correctly (following the general rule), how much of B stock does A own?

A) A owns less than 20 percent of the stock of B

B) A owns at least 20 percent but not more than 50 percent of the stock of B

C) A owns more than 50 percent of the stock of B

D) Cannot be determined

Please explain.