In which of the following disorder, the alveoli get filled with fluid leading to severe problems in respiration?

Options

A. Common cold
B. Whooping cough
C. Diphtheria
D. Pneumonia

Explanation

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks which disorder leads to the alveoli being filled with fluid, causing severe respiratory issues.

2. **Evaluating the Options**:
- **Common Cold**: Known as rhinitis, caused by the rhinovirus. It primarily affects the nose and respiratory passages but does not impact the lungs. Therefore, it does not fill the alveoli with fluid.
- **Whooping Cough**: Also known as pertussis, caused by Bordetella pertussis. It mainly affects children and causes respiratory disorders but does not fill the alveoli with fluid.
- **Diphtheria**: Caused by Corynebacterium diphtheriae, it affects the throat and tonsils but does not affect the lungs or fill the alveoli with fluid.
- **Pneumonia**: Caused by bacteria such as Streptococcus pneumoniae. This disease affects the lungs, leading to the alveoli filling with fluid, which severely impairs respiration.

3. **Conclusion**: Among the options, pneumonia is the only disorder that causes the alveoli to fill with fluid, leading to significant respiratory problems.

4. **Final Answer**: The correct answer is **Pneumonia**.

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