During fiscal year 2018, BHD Inc. had Cash from Operations of $600 million, and Cash Used for Investing of $1,000 million. During the year the Cash account on the balance sheet decreased by $700 million. This implies that the Financing cash flow was an:________.
a. outflow of $300 million
b. inflow of $300 million
c. outflow of $100 million
d. inflow of $400 million