In order to fund those uses, there exist two types of cash sources. Internal cash flow is generated from retained earnings and depreciation. External cash flow is generated from short-term borrowings and long-term debt and equity finance. As a general principle, short-term uses are proposed to be financed by short-term sources and vice versa. Long-term uses of cash are basically for funding the future of the company by new investments. Therefore, the correct option is E.