Difficulty in breathing causes wheezing due to constriction of bronchi and bronchioles in case of

Options

A. Asthma
B. Emphysema
C. Bronchitis
D. Pneumonia

Answer

### Step-by-Step Solution:

1. **Understanding the Question**: The question asks about a condition that leads to difficulty in breathing and wheezing due to the constriction of bronchi and bronchioles.

2. **Identifying Key Terms**: The key terms in the question are "difficulty in breathing," "wheezing," "constriction," "bronchi," and "bronchioles." These terms are associated with respiratory conditions.

3. **Analyzing the Options**: The options given are asthma, emphysema, bronchitis, and pneumonia. We need to evaluate which of these conditions is characterized by the symptoms described.

4. **Evaluating Each Condition**:
- **Asthma**: A chronic condition that causes the airways to tighten and swell, leading to difficulty in breathing and wheezing. It is often triggered by allergens.
- **Emphysema**: A condition that primarily involves the destruction of alveoli and does not typically cause wheezing due to bronchi constriction.
- **Bronchitis**: Involves inflammation of the bronchi but does not primarily cause wheezing due to constriction like asthma does.
- **Pneumonia**: An infection that inflates the air sacs in one or both lungs, leading to cough and difficulty breathing, but not specifically wheezing due to constriction.

5. **Conclusion**: Based on the analysis, asthma is the condition that specifically causes wheezing due to the constriction of bronchi and bronchioles.

6. **Final Answer**: The correct answer is **asthma**.