Alpine Corporation reported the following information for fiscal 2017 and 2016.

December 31 2017 2016
Operating assets $164,101 $153,211
Operating liabilities 120,785 114,836
Net cash flow from operations 46,709 39,540
Net operating profit after tax (NOPAT) 33,371 31,742
Discount factor 6.0% 6.0%

What are the company's free cash flows to the firm (FCFF) for 2017?

A. $28,430
B. $24,638
C. $28,907
D. $25,797
E. None of the above