Classify each of the following business activities as an operating, an investing, or a financing activity.
a. Acquiring inventory for resale
b. Buying and selling stocks and bonds of other companies
c. Selling shares of stock to investors for cash
d. Selling products or services
e. Buying property, plant, or equipment
f. Acquiring and paying for other operating items
g. Selling property, plant, or equipment
h. Borrowing cash from creditors