Match the following with the types of leucocytes and their function.
`{:("(P) Neutrophils","(A) Heparin and Histamine"),("(Q) Basophils","(B) Antibody formation"),("(R) Acidophils","(C) Anti- allergic"),("(S) Lymphocytes","(D) Phagocytes"):}`

Options

A. P – (D), Q – (A), R – (C), S – (B)
B. P – (A), Q – (D), R – (C), S – (B)
C. P – (C), Q – (D), R – (B), S – (A)
D. P – (B), Q – (A), R – (C), S – (D)

Answer

To solve the question of matching the types of leucocytes with their functions, we can break it down step by step:

### Step-by-Step Solution:

1. **Identify the Types of Leucocytes**:
- (P) Neutrophils
- (Q) Basophils
- (R) Acidophils
- (S) Lymphocytes

2. **Identify Their Functions**:
- (A) Heparin and Histamine
- (B) Antibody formation
- (C) Anti-allergic
- (D) Phagocytes

3. **Match Neutrophils**:
- Neutrophils are known as phagocytes. They are responsible for ingesting and destroying microorganisms and foreign particles.
- **Match**: (P) Neutrophils → (D) Phagocytes

4. **Match Basophils**:
- Basophils release heparin (an anticoagulant) and histamine (involved in inflammatory responses).
- **Match**: (Q) Basophils → (A) Heparin and Histamine

5. **Match Acidophils**:
- Acidophils are often referred to as eosinophils. They are involved in anti-allergic responses and inflammatory reactions.
- **Match**: (R) Acidophils → (C) Anti-allergic

6. **Match Lymphocytes**:
- Lymphocytes include B-Lymphocytes, which are primarily responsible for antibody formation.
- **Match**: (S) Lymphocytes → (B) Antibody formation

### Final Matches:
- (P) Neutrophils → (D) Phagocytes
- (Q) Basophils → (A) Heparin and Histamine
- (R) Acidophils → (C) Anti-allergic
- (S) Lymphocytes → (B) Antibody formation

### Summary of Matches:
1. (P) Neutrophils → (D)
2. (Q) Basophils → (A)
3. (R) Acidophils → (C)
4. (S) Lymphocytes → (B)