Chicken pox is a highly contagious disease. It is characterized by the appearance of blisters and lesions on the skin. Chicken pox is more common in children and young adults. Which of the following organisms causes chicken pox?

Options

A. Bacteria
B. Viruses
C. Fungi
D. Algae

Answer

To determine which organism causes chicken pox, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Disease**: Chicken pox is described as a highly contagious disease characterized by the appearance of blisters and lesions on the skin. It is more common in children and young adults.

2. **Identify the Symptoms**: The key symptoms of chicken pox include itchy skin, blisters, and lesions. These symptoms help in identifying the type of infectious agent responsible.

3. **Consider Possible Organisms**: The question asks which organism causes chicken pox. The options typically include bacteria, viruses, fungi, and algae.

4. **Eliminate Incorrect Options**:
- **Algae**: Algae are autotrophic organisms that do not cause diseases in humans. Therefore, they can be eliminated.
- **Fungi**: While some fungi can cause skin infections, they are not responsible for chicken pox. Thus, fungi can be eliminated.
- **Bacteria**: Chicken pox is not caused by bacteria, so this option can also be eliminated.

5. **Identify the Correct Organism**: The causative agent of chicken pox is the varicella zoster virus, which is a type of virus. This is the only remaining option.

6. **Conclusion**: The correct answer to the question is that chicken pox is caused by the varicella zoster virus.

### Final Answer:
The organism that causes chicken pox is the **varicella zoster virus**.

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