Answer: opening the discount window to commercial banks

## Explanation During the 2008 financial crisis, the Federal Reserve and U.S. government implemented several measures to address liquidity issues: - **A. Lowering interest rates**: The Fed aggressively cut the federal funds rate to near zero to stimulate lending and economic activity. - **B. Bailing out major financial institutions**: Programs like TARP (Troubled Asset Relief Program) provided capital injections to banks and other financial institutions. - **D. Acquiring assets issued by major financial institutions**: The Fed implemented quantitative easing programs that involved purchasing various assets, including mortgage-backed securities. **C. Opening the discount window to commercial banks** is NOT correct because the discount window is a standing facility that the Federal Reserve has always maintained for commercial banks to borrow funds. This was not a new intervention during the crisis - it's a permanent feature of the Federal Reserve System that existed long before the 2008 crisis. The Fed did expand the types of institutions that could access the discount window and changed the terms, but the discount window itself was not "opened" as a new measure during the crisis.

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