Final answer:
Buying student-loan-backed securities or long-term Treasury securities suggests quantitative easing, while selling short-term Treasury securities aligns with standard open market operations.
Step-by-step explanation:
The question asks to categorize the Federal Reserve's actions as either standard open market operations or quantitative easing (QE). The purchase of student-loan-backed securities or long-term Treasury securities typically indicates quantitative easing, as these actions are meant to influence long-term interest rates and introduce liquidity into the financial system when traditional monetary policy tools are less effective, particularly when short-term interest rates are near zero. On the other hand, the selling of short-term Treasury securities is more indicative of standard open market operations, which are used to manage the money supply and control short-term interest rates.