Which is caused by allergy

Options

A. Leprosy
B. Typhoid
C. Asthma
D. Tetanus

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks which condition is caused by allergies. We need to analyze the given options to identify the correct one.

2. **Analyzing the Options**:
- **Option 1: Laparoscis**: This is not a recognized condition related to allergies. It seems to be a misspelling or confusion with "leprosy," which is caused by a bacterial infection (Mycobacterium leprae).
- **Option 2: Typhoid**: This is caused by the bacteria Salmonella Typhi, which is an infectious disease and not related to allergies.
- **Option 3: Asthma**: This is a chronic inflammatory disease of the airways that can be triggered by allergens such as pollen, dust mites, and pet dander. It is characterized by reversible airflow obstruction and bronchospasm.
- **Option 4: Tetanus**: This is caused by the bacteria Clostridium tetani and is not related to allergies.

3. **Identifying the Correct Answer**: Based on the analysis, asthma is the only condition among the options that is directly caused by allergies and environmental factors.

4. **Conclusion**: Therefore, the correct answer to the question "Which is caused by allergy?" is **asthma**.

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