## **Core Concept**
The detection of lipids in tissues is a crucial aspect of histopathological diagnosis. Lipids can accumulate in tissues due to various pathological conditions, such as fatty liver disease or lipid storage disorders. The identification of lipids in tissues is essential for diagnosing and understanding the underlying pathology.

## **Why the Correct Answer is Right**
The correct answer, **Sudan III**, is a lysosome (fat-soluble dye) used for detecting lipids in tissues. It works by dissolving in and staining lipids, making them visible under a microscope. This technique is commonly used in histopathology labs to identify lipid droplets in tissue sections.

## **Why Each Wrong Option is Incorrect**
* **Option A:** - This option is blank and does not provide any information.
* **Option B:** - Similarly, this option is blank and does not provide any relevant information for detecting lipids in tissues.
* **Option D:** - This option is also blank and does not offer a valid method for detecting lipids.

## **Clinical Pearl / High-Yield Fact**
A key point to remember is that **Sudan III** and **Oil Red O** are commonly used for detecting lipids. These stains are critical in the diagnosis of conditions like fatty liver or lipid storage diseases. Remembering that Sudan III is used for detecting lipids can help in distinguishing it from other staining techniques used in histopathology.

## **Correct Answer:** . **Sudan III**