Indicate in which part of the statement of cash flows each item would appear: operating activities (O), investing activities (I), or financing activities (F).
(a) _____ Cash received from customers.
(b) _____ Cash paid to stockholders (dividends).
(c) _____ Cash received from issuing new common stock.
(d) _____ Cash paid to suppliers.
(e) _____ Cash paid to purchase a new office building.