A Bill of Exchange is a payment instruction - it says who will pay whom and when.
Bill of Exchange Definition: Examples and How It Works (investopedia.com)

Coercion is not a type of fraud. The other three are.

The acid test, also known as the quick ratio, measures a company's ability to cover its current liabilities with its most liquid assets, excluding inventory. It is a stringent indicator of short-term financial health. By requesting this ratio, the company can assess whether a potential supplier has sufficient liquidity to meet its obligations, which is crucial when procuring strategic items.
Reference:
CIPS Level 4 Diploma in Procurement and Supply, L4M4 Study Guide, Section 2.3: Financial Appraisal of Suppliers

Strategic sourcing focuses onlong-term value creation, alignment with organisational objectives, and cross- functional stakeholder involvement. Reviewing product design modifications with stakeholders directly influences cost, sustainability, quality, and supply risk over the product lifecycle. Similarly, evaluating quotations for major systems such as accounting software represents a high-value, long-term sourcing decision with strategic impact. In contrast, sourcing office chairs and routine stationery purchases are low- value, repetitive activities and are therefore classified as tactical sourcing. Ethical and responsible sourcing requires procurement professionals to prioritise strategic activities that affect long-term performance, risk management, and sustainability outcomes.
Reference:CIPS L4M4 Ethical & Responsible Sourcing Study Guide (v2) - Tactical vs strategic sourcing; stakeholder engagement.

The balance sheet (statement of financial position) shows assets, liabilities, and equity at a point in time. The profit and loss account (income statement) shows revenues, expenses, and profit over a period. These are the two core statements used to assess supplier stability and performance. The cash flow statement is useful but supplementary, while chairman's statements are narrative, not financial records. Responsible sourcing emphasises using balance sheet and P&L analysis to evaluate supplier financial strength, ensuring continuity of supply and risk management.
Reference: CIPS L4M4 Study Guide (v2), LO: "Application" - financial statements and supplier evaluation.