Platinum Corporation, a Calendar Year Taxpayer, Has Taxable Income of $500,000

Platinum Corporation, a calendar year taxpayer, has taxable income of $500,000. Among its transactions for the year are the following: Disregarding any provision for Federal income taxes, Platinum Corporation's current E & P is:

A) $455,000.
B) $535,000.
C) $545,000.
D) $625,000.
E) None of the above.