Identify the type of cash flow activity for each of the following events (operating, investing, or financing):

(a) Issued common stock.

(b) Redeemed bonds.

(c) Issued preferred stock.

(d) Purchased patents.

(e) Net income.

(f) Paid cash dividends.

(g) Purchased treasury stock.

(h) Sold long-term investments.

(i) Sold equipment.

(j) Purchased buildings.

(k) Issued bonds.