Answer one of the following questions regarding investments:

1. Distinguish between a debt security and an equity security.
2. Identify and explain the three types of classifications for investments in debt securities.
3. At what amount should trading, available-for-sale, and held-to-maturity securities be reported on the balance sheet?
4. Indicate how unrealized holding gains and losses should be reported for investment securities classified as trading, available-for-sale, and held-to-maturity.

Remember to use proper APA references and citations in all of your work.