Which of the following is not a communicable disease?

Options

A. Cancer
B. Chickenpox
C. Tuberculosis
D. Malaria

Explanation

To determine which of the following is not a communicable disease, we need to analyze each option provided:

1. **Understanding Communicable Diseases**:
- A communicable disease is one that can be transmitted from one person to another. This can occur through direct contact, airborne transmission, or vectors (like mosquitoes).

2. **Analyzing the Options**:
- **Option A: Cancer**:
- Cancer is classified as a non-communicable disease. It does not spread from one person to another. Therefore, if one person has cancer, it does not mean that others around them will also get cancer.
- **Option B: Chicken Pox**:
- Chicken pox is a communicable disease. It spreads easily from an infected person to others through respiratory droplets or direct contact with the rash.
- **Option C: Tuberculosis (TB)**:
- Tuberculosis is also a communicable disease. It spreads through the air when an infected person coughs or sneezes, releasing bacteria that can be inhaled by others.
- **Option D: Malaria**:
- Malaria is a communicable disease caused by parasites transmitted through the bites of infected mosquitoes. It is not spread directly from person to person but is still considered communicable.

3. **Conclusion**:
- After analyzing all the options, we find that the only non-communicable disease listed is **Option A: Cancer**. Therefore, the correct answer to the question is cancer.

### Final Answer:
**Option A: Cancer is not a communicable disease.**