Diploid cell in human, where cell division does not occur :-
(a) Heart cell
(b) Muscle cell
( c ) Nerve cell

Options

A. Only c
B. b and c
C. a and c
D. a, b and c

Answer

To solve the question regarding which diploid cell in humans does not undergo cell division, we will analyze each option provided: heart cells, muscle cells, and nerve cells.

### Step-by-Step Solution:

1. **Understanding Diploid Cells**:
- Diploid cells have two sets of chromosomes, which is the typical state for most human cells, including heart, muscle, and nerve cells.

2. **Analyzing Heart Cells**:
- Heart cells, or cardiomyocytes, do not typically undergo cell division after birth. They are largely terminally differentiated, meaning they have reached a mature state and do not replicate.

3. **Analyzing Muscle Cells**:
- Muscle cells (myocytes) can undergo a form of cell division, particularly in response to injury. Satellite cells, which are a type of stem cell associated with muscle tissue, can proliferate and differentiate to repair damaged muscle.

4. **Analyzing Nerve Cells**:
- Nerve cells (neurons) also generally do not divide after they have matured. They lack centrioles, which are essential for cell division, and thus they do not undergo mitosis.

5. **Conclusion**:
- Both heart cells and nerve cells do not undergo cell division after maturation. Therefore, the correct answer includes both (a) Heart cell and (c) Nerve cell. However, since the question asks for a single diploid cell type where cell division does not occur, the best answer is (c) Nerve cell, as it explicitly lacks the structures necessary for division.

### Final Answer:
(c) Nerve cell