Influenza and polio are examples of:

Options

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

Explanation

**Step-by-Step Text Solution:**

1. **Identify the Diseases**: The question asks about influenza and polio. We need to determine what type of pathogens cause these diseases.

2. **Understand Influenza**: Influenza is commonly known as the flu. It is caused by a specific type of virus known as the influenza virus. This virus is responsible for the symptoms associated with the flu.

3. **Understand Polio**: Polio, or poliomyelitis, is another viral disease. It is caused by the poliovirus. Like influenza, polio is also caused by a virus.

4. **Categorize the Pathogens**: Both influenza and polio are caused by viruses. Therefore, they belong to the category of viral diseases.

5. **Conclusion**: Based on the information gathered, both influenza and polio are examples of viruses.

**Final Answer**: Influenza and polio are examples of viruses.

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