Match the columns
`{:(,"Column I " ,, "Column II") , (a , "Harversian Canal" , p , "Kidney"), (b , "Dendrites", q, "Cartilage" ), (c , "Sarcolemma" , r, "Muscle"), (d , "Chondrocytes " , s, "Nerve cells"), (- , - , t,"Bone"):}`

Options

A. A = p , B = r, C = s , D = t
B. A = q , B = r , C = s, D = t
C. A = s, B = t, C = q , D = r
D. A = t, B = s, C = r, D = q

Answer

To solve the question of matching the columns, we will analyze each item in Column I and find its corresponding match in Column II step by step.

### Step-by-Step Solution:

1. **Match Haversian Canal (a)**:
- The Haversian canal is a central channel in bone that contains blood vessels and nerves. It is a characteristic feature of bone tissue.
- **Match**: Haversian Canal (a) → Bone (t)

2. **Match Dendrites (b)**:
- Dendrites are the branched extensions of a neuron that receive signals from other neurons. They are associated with nerve cells.
- **Match**: Dendrites (b) → Nerve cells (s)

3. **Match Sarcolemma (c)**:
- Sarcolemma is the plasma membrane surrounding muscle fibers. It is specifically related to muscle tissue.
- **Match**: Sarcolemma (c) → Muscle (r)

4. **Match Chondrocytes (d)**:
- Chondrocytes are the cells found in cartilage. They are responsible for the maintenance and formation of cartilage.
- **Match**: Chondrocytes (d) → Cartilage (q)

### Final Matches:
- a → t (Haversian Canal → Bone)
- b → s (Dendrites → Nerve cells)
- c → r (Sarcolemma → Muscle)
- d → q (Chondrocytes → Cartilage)

### Conclusion:
The correct matches are:
- a → t
- b → s
- c → r
- d → q

Thus, the final answer is:
- A → t
- B → s
- C → r
- D → q