Select correct combination of statements for lymph.
i. It helps to maintain fluid balance of the body.
ii. It is contained in lymphatic vessels and lymphatic organs in mammals.
iii.It is derived from tissue fluid.
iv. It contains less antibodies than plasma.
v. It flows in both directions.

Options

A. (i), (ii), (iii) and (v)
B. (ii), (iii), (iv)
C. (i), (iv), (v)
D. (iii), (iv), (v)

Answer

To solve the question regarding the correct combination of statements for lymph, we will analyze each statement one by one.

### Step-by-Step Solution:

1. **Statement i: It helps to maintain fluid balance of the body.**
- **Analysis:** This statement is incorrect. While lymph does play a role in fluid transport, the primary function of maintaining fluid balance is mainly the responsibility of blood plasma, not lymph.
- **Conclusion:** **Incorrect**

2. **Statement ii: It is contained in lymphatic vessels and lymphatic organs in mammals.**
- **Analysis:** This statement is correct. Lymph is indeed contained within lymphatic vessels and is found in lymphatic organs such as lymph nodes and lymphatic ducts.
- **Conclusion:** **Correct**

3. **Statement iii: It is derived from tissue fluid.**
- **Analysis:** This statement is correct. Lymph is formed from interstitial fluid, which is derived from tissue fluid as blood plasma filters through capillaries.
- **Conclusion:** **Correct**

4. **Statement iv: It contains less antibodies than plasma.**
- **Analysis:** This statement is correct. Lymph typically contains fewer antibodies compared to blood plasma, as it is primarily involved in transporting lymphocytes and antibodies from lymph nodes to the bloodstream.
- **Conclusion:** **Correct**

5. **Statement v: It flows in both directions.**
- **Analysis:** This statement is incorrect. Lymph flows in one direction only, towards the heart, making it unidirectional.
- **Conclusion:** **Incorrect**

### Final Conclusion:
The correct combination of statements is:
- **ii, iii, and iv are correct.**