In the absene of bile salts,glycocholic and taurochalic acids the intestinal absorption of all of the following will be impeded except

Options

A. Riboflavin
B. Oleic acid
C. Cholesterol
D. Vitamin A

Answer

To solve the question, we need to analyze the role of bile salts in the absorption of different substances and identify which one is not affected by their absence.

### Step-by-Step Solution:

1. **Understanding Bile Salts**: Bile salts, such as glycocholic and taurocholic acids, are crucial for the emulsification of fats in the intestine. They help break down large fat globules into smaller droplets, making it easier for digestive enzymes to act on them.

2. **Identifying the Options**: The options provided are:
- Riboflavin
- Oleic acid
- Cholesterol
- Vitamin A

3. **Analyzing Each Option**:
- **Riboflavin**: This is a water-soluble vitamin (Vitamin B2). It does not require bile salts for absorption as it is absorbed through a different mechanism that does not involve fat emulsification.
- **Oleic Acid**: This is a fatty acid and is fat-soluble. Its absorption will be impeded in the absence of bile salts because it requires emulsification.
- **Cholesterol**: This is a sterol and is also fat-soluble. Similar to oleic acid, its absorption will be affected without bile salts.
- **Vitamin A**: This is a fat-soluble vitamin. Its absorption will also be hampered in the absence of bile salts due to its dependence on emulsification.

4. **Conclusion**: Since riboflavin is water-soluble and does not rely on bile salts for absorption, it will not be impeded in the absence of bile salts. Therefore, the correct answer is **Riboflavin**.

### Final Answer:
**Riboflavin**