The 2017 Form 10-K of Oracle Corporation, for the May 31, 2017 year end, included the following information relating to their allowance for doubtful accounts: Balance in allowance at the beginning of the year $327 million, accounts written off during the year of $137 million balance in allowance at the end of the year $319 mision, What did Oracle Corporation report as bad debt expense for the year? Select one: A 527 million B5120 million C5118 milion 0 5151 million E. None of the above