Final answer:
Stock investments pay dividend income, while bonds and CDs pay interest income.
Step-by-step explanation:
When a company invests excess cash, it can receive interest income or dividend income from its investments. Stock investments typically pay dividend income, which is a portion of the company's profits distributed to its shareholders. On the other hand, bonds and CDs typically pay interest income, which is a fixed payment made to the bondholder or CD holder.
For example, if you invest in a stock like Coca-Cola, you may receive dividend income from the company's profits. However, if you invest in a bond or a certificate of deposit (CD), you would earn interest income on your investment.