Explanation:

• Option A (Obsolete inventory): Incorrect. Obsolete inventory is a drag on liquidity, not a pull. It indicates unused inventory that may no longer be usable, which ties up capital without generating cash flow.

• Option B (Reduced credit limits): Correct. Reduced credit limits are a pull on liquidity. This occurs when suppliers restrict the amount of credit available to a company, often due to late payments, forcing the company to pay out funds before receiving sales proceeds.

• Option C (Uncollected receivables): Incorrect. Uncollected receivables are a drag on liquidity, as they represent funds tied up in outstanding invoices that may not be collected, increasing bad debt expenses and reducing available cash.