The Consumer Price Index (CPI) measures the average change over time in the prices paid by consumers for a market basket of goods and services. It reflects price variations in specific geographical locations and tracks the weighted average prices of selected commodities, providing insights into inflation and cost of living.
Exact Extract from Study Guide:
"The Consumer Price Index (CPI) tracks variations in prices for a range of consumer goods and services over time, in a particular geographic location."

A cash flow statement shows the money coming in and out. This would therefore show whether a supplier has enough money coming in, to be able to pay some of it out to a subcontractor.
P&L and Balance Sheets look more broadly at finances, rather than saying what's physically in the bank at a specific given time.
Do learn the difference between these three financial documents for the exam.
Balance Sheet: Explanation, Components, and Examples (investopedia.com) Profit and Loss Statement Meaning, Importance, Types, and Examples (investopedia.com) Cash Flow Statement: How to Read and Understand It (investopedia.com)

liquid = the ability to pay short and medium term debts. In simple terms do you have more in stuff (money, assets) than you owe in debt?
Understanding Liquidity and How to Measure It (investopedia.com)
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Multi-sourcing allows organisations to diversify their supply base, providing flexibility, and reducing risk by having multiple suppliers. It is an effective strategy to prevent over-dependence on a single source and allows for competition among suppliers, promoting quality and ethical standards in the supply chain.

Profitability and asset levels indicate a supplier's financial stability and ability to meet contract demands.
Responsible sourcing practices include assessing financial capacity to reduce risk in the supply chain and ensure long-term supplier viability.