Answer: Level 3 assets

**Explanation:** - **Option A (Incorrect):** Level 1 assets are valued using publicly traded prices, which are readily available and mandated for valuation. These assets require minimal scrutiny due to their transparency. - **Option B (Incorrect):** Level 2 assets rely on broker quotes when publicly traded prices (Level 1) are unavailable. While these assets involve some estimation, they are less opaque than Level 3 assets. - **Option C (Correct):** Level 3 assets are valued using internal models when external broker quotes (Level 2) are unreliable or unavailable. Due to their lack of observable market data, these investments demand the highest level of scrutiny and due diligence to ensure accurate valuation and mitigate risks.

Author: LeetQuiz Editorial Team