On April 30, 2011, Sistar, Inc. purchased for $30 per share all 200,000 of Wren Corp.'s outstanding common stock. On this date Wren's balance sheet showed net assets of $5,000,000. Additionally, the fair value of Wren's identifiable assets on this date was $400,000 in excess of their carrying amount. On Sistar's April 30, 2011, consolidated balance sheet, what amount should be reported as goodwill? a. $350,000 b. $400,000 c. $600,000 d. $1,000,000