单选题 An analyst is doing research about cash flow statement. On the cash flow statement, the acquisition of or sale proceeds from trading securities is categorized as a(n):
A. investing activity.
B. financing activity.
C. operating activity.

【正确答案】 C

【答案解析】[解析] 运营、投资和融资活动(Operating，Investing&Financing activities)的分类见下表：

Operating activities
Inflows			Outflows
Cash collected from customers			Cash paid to employees and suppliers
Interest and dividends received			Cash paid for other expenses
Sale proceeds from trading securities			Acquisition of trading securities
			Interest paid
			Taxes paid
Investing activities
Inflows			Outflows
Sale proceeds f'rom fixed assets			Acquisition of fixed assets
Sale proceeds from debt and equity investments			Acquisition of deht and equity investments

Principal received from loans made to others			IJoans made to others

Financing activities
Inflows			Outflows
Principal amounts of debt issued			Principal paid on debt
			Payments to require stocks
			Dividends paid to shareholders