Lanolin is an

Options

A. Ester of arachidonic acid with glycerol
B. Ester of palmitic acid with glycerol
C. Ester of oleic acid with cholesterol
D. Ester of oleic acid with glycerol

Answer

To solve the question "Lanolin is an", we need to analyze the options provided and understand the chemical nature of lanolin.

### Step-by-Step Solution:

1. **Identify Lanolin**:
- Lanolin is also known as wool wax or wool grease. It is a natural substance secreted by the sebaceous glands of wool-bearing animals.

2. **Understand the Composition**:
- Lanolin is primarily composed of a mixture of esters of fatty acids and alcohols. The main component of lanolin is cholesterol.

3. **Analyze the Options**:
- The options given are:
- A) Ester of arachidonic acid with glycerol
- B) Ester of palmitic acid with glycerol
- C) Ester of oleic acid with cholesterol
- D) Ester of oleic acid with glycerol

4. **Evaluate Each Option**:
- Options A, B, and D include glycerol as a component. Since lanolin does not contain glycerol but instead contains cholesterol, these options can be eliminated.
- Option C states that lanolin is an ester of oleic acid with cholesterol, which aligns with the known composition of lanolin.

5. **Conclusion**:
- Therefore, the correct answer is option C: Lanolin is an ester of oleic acid with cholesterol.

### Final Answer:
**Lanolin is an ester of oleic acid with cholesterol.**