Which of the following correctly describes the calculation of net cash flows for each year in a financial analysis?
A. Net cash flows are calculated by subtracting total expenses from total revenues, excluding non-cash items.
B. Net cash flows are determined by adding up all investments made during the year.
C. Net cash flows are computed by taking the difference between the beginning and ending cash balances.
D. Net cash flows are calculated by summing all sources of income and subtracting total liabilities.