Assertion : Heparin is a natural anticogulantt indside the blood vessels .
Reason : It is example of homopolysaccharide .

Options

A. If both assertion and Reason are true and the Reason is the correct explanation of the assertion .
B. If both Assertion and Reason ate true , but the reason is not the correct explanation of the assertion .
C. If Assertion is true , but Reason is false
D. if both Assertion and Reason are false.

Answer

### Step-by-Step Solution:

1. **Understanding the Assertion**:
- The assertion states that "Heparin is a natural anticoagulant inside the blood vessels."
- This is true. Heparin is indeed a natural anticoagulant that helps prevent the formation and extension of blood clots within the circulatory system.

2. **Understanding the Reason**:
- The reason provided is that "It is an example of homopolysaccharide."
- This statement is false. Heparin is not a homopolysaccharide; it is classified as a mucopolysaccharide (or glycosaminoglycan), which consists of repeating disaccharide units rather than a single type of sugar monomer.

3. **Conclusion**:
- Since the assertion is true and the reason is false, we conclude that the assertion stands alone without support from the reason.

### Final Answer:
- The assertion is true, but the reason is false.