Match the terms given under column 'A' with their functions given under column 'B' and select the answer from the options given below :
`{:(,"Column A",,"Column B"),("A.","Lymphatic","i.","Carries oxygenated"),("B.","Pulmonary vein","ii.","Immune response"),("C.","Thrombocytes","iii",underset(underset("circulatory system")("tissue fluid to the"))("To drain back the")),("D.","Lymphocytes","iv.","Coagulation of blood"):}`
Options :

Options

A. A-ii,B-i,C-iii,D-iv
B. A-iii,B-i,C-iv,D-ii
C. A-iii,B-i,C-ii,D-iv
D. A-ii,B-i,C-iii,D-iv

Answer

To solve the question of matching the terms in Column A with their corresponding functions in Column B, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Terms in Column A**:
- A. Lymphatic
- B. Pulmonary vein
- C. Thrombocytes
- D. Lymphocytes

2. **Identify the Functions in Column B**:
- i. Carries oxygenated blood
- ii. Immune response
- iii. To drain back the tissue fluid to the circulatory system
- iv. Coagulation of blood

3. **Match Each Term with Its Function**:
- **Lymphatic**: The lymphatic system is responsible for draining excess tissue fluid back into the circulatory system. Therefore, A matches with iii.
- **Pulmonary vein**: The pulmonary vein carries oxygenated blood from the lungs to the heart. Thus, B matches with i.
- **Thrombocytes**: Also known as platelets, thrombocytes are involved in the coagulation of blood. Hence, C matches with iv.
- **Lymphocytes**: These cells are part of the immune system and respond to foreign antigens, thus D matches with ii.

4. **Final Matching**:
- A (Lymphatic) → iii (To drain back the tissue fluid to the circulatory system)
- B (Pulmonary vein) → i (Carries oxygenated blood)
- C (Thrombocytes) → iv (Coagulation of blood)
- D (Lymphocytes) → ii (Immune response)

5. **Select the Correct Option**:
Based on the matches:
- A → iii
- B → i
- C → iv
- D → ii

The correct option is the one that corresponds to these matches.