Answer: Bankruptcy protection and reorganization

## Explanation In corporate finance, sources of liquidity are categorized as either primary or secondary: **Primary sources of liquidity** include: - Cash and cash equivalents - Short-term investments - Bank lines of credit (Option B) - Trade credit (Option A) - Accounts receivable **Secondary sources of liquidity** include: - Bankruptcy protection and reorganization (Option C) - Asset liquidation - Debt restructuring - Equity issuance - Divestiture of business units **Key Distinction:** - **Primary sources** are readily available, low-cost sources of liquidity that companies use in normal operations. - **Secondary sources** are typically more costly, less flexible, and often used in financial distress situations. **Why Option C is correct:** Bankruptcy protection and reorganization is considered a secondary source because it involves legal proceedings that allow a company to restructure its debts and operations under court supervision. This is typically pursued when primary sources of liquidity are insufficient or unavailable. **Why Options A and B are incorrect:** - **Trade credit (A)** is a primary source where suppliers extend payment terms. - **Bank line of credit (B)** is a pre-arranged borrowing facility with a bank, representing a primary source of liquidity. **Additional Context:** Secondary sources often involve significant costs, including legal fees, loss of control, damage to reputation, and potential dilution of ownership. Companies typically exhaust primary sources before resorting to secondary sources.

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