A communicable disease is

Options

A. Kwashiorkar
B. Diphtheria
C. Diabetes
D. Hypertension

Answer

### Step-by-Step Solution:

1. **Understanding Communicable Diseases**:
- Communicable diseases are infectious diseases that can be transmitted from one organism to another. They spread through various means, such as direct contact, respiratory droplets, or vectors.

2. **Examples of Communicable Diseases**:
- Common examples include common cold, cholera, tuberculosis, and AIDS. These diseases can easily spread among individuals.

3. **Analyzing the Options**:
- **Option 1: Poisson-Yorker**: This is not a communicable disease; it is a non-communicable disease caused by protein deficiency.
- **Option 2: Diphtheria**: This is a highly contagious disease caused by the bacterium Corynebacterium diphtheriae. It spreads through respiratory droplets from coughing or sneezing, making it a communicable disease.
- **Option 3: Diabetes**: This is a non-communicable disease related to insulin levels in the blood and is not contagious.
- **Option 4: Hypertension**: This is also a non-communicable disease and is related to blood pressure regulation.

4. **Conclusion**:
- Among the options, the only communicable disease is **Diphtheria**.

### Final Answer:
A communicable disease is **Diphtheria**.

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