Investing activities do not include the: a. Purchase of plant assets.

b. Loaning of money in exchange for notes receivable.

c. Issuance of common stock.

d. Sale of plant assets.

e. Sale of short-term investments other than cash equivalents.

c.Issuance of common stock.

Explanation:

Investing activities lead to an increase in business cash flows.  Investing involves spending money with the expectation of making higher returns.

Some investing activities include

1. Purchase or acquisition of assets to be used in the production process.

2. Sale of business assets

3. Acquisition or sale of other business

Issuing of common stocks is not considered an investment option. Common shares are issued when companies need to raise additional capital.  Issuance of common shares is a financing activity.

there are so many examples for that in different areas, like biology experiment carried out in our lab recently.

here's one link :