Which of the following types of securities are considered trading securities?

Trading securities refer specifically to debt and equity securities that a company intends to buy and sell within a short time frame to earn profits from market price fluctuations. These securities are actively managed, meaning that the purchases and sales are intended for near-term profit rather than long-term investment.

The correct choice is thus focused on those debt and equity securities that are held with the intent of selling them in the near term. This distinguishes them from other types of investments such as long-term bonds, which are typically held until maturity, or real estate investments and retirement funds, which are intended for long-term holding and growth rather than immediate trading for profit.

By this definition, debt and equity securities for short-term sale fit within the classification of trading securities as they align with the purpose of trading rather than holding for investment or income generation over a longer period.