Increase in GFR can be due to :
(a) Increase in blood colloidal osmotic pressure
(b) Increase in capsular hydrostatic pressure
(c) Increase in capillary blood pressure
(d) More than one option is correct

Options

A. Increase in blood colloidal osmotic pressure
B. Increase in capsular hydrostatic pressure
C. Increase in capillary blood pressure
D. More than one option is correct

Answer

To solve the question regarding the factors that can lead to an increase in Glomerular Filtration Rate (GFR), let's analyze each option step by step.

### Step-by-Step Solution:

1. **Understanding GFR**:
- GFR stands for Glomerular Filtration Rate, which is the rate at which blood is filtered in the kidneys. It is a crucial measure of kidney function.

2. **Evaluating Each Option**:
- **(a) Increase in blood colloidal osmotic pressure**:
- An increase in blood colloidal osmotic pressure would actually draw water back into the capillaries, reducing the amount of fluid that can be filtered into the Bowman's capsule. Therefore, this would **decrease** GFR.

- **(b) Increase in capsular hydrostatic pressure**:
- An increase in capsular hydrostatic pressure opposes the filtration process. This means it would also lead to a **decrease** in GFR, not an increase.

- **(c) Increase in capillary blood pressure**:
- An increase in capillary blood pressure enhances the filtration force, which would lead to an **increase** in GFR. This is due to higher hydrostatic pressure pushing more fluid into the Bowman's capsule.

- **(d) More than one option is correct**:
- Since options (a) and (b) do not contribute to an increase in GFR, this option cannot be correct.

3. **Conclusion**:
- The only factor that contributes to an increase in GFR from the given options is (c) Increase in capillary blood pressure. Therefore, the correct answer is **(c)**.

### Final Answer:
(c) Increase in capillary blood pressure