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.