Deficiency of vitamin `B_(1)` causes the disease

Options

A. Cheilosis
B. Sterility
C. Convulsions
D. Beri-Beri

Answer

### Step-by-Step Solution:

1. **Identify Vitamin B1**: Vitamin B1 is also known as thiamine. It is a water-soluble vitamin that plays a crucial role in carbohydrate metabolism and nerve function.

2. **Understand the Consequences of Deficiency**: When there is a deficiency of Vitamin B1, it leads to a specific disease.

3. **Recognize the Disease**: The disease caused by the deficiency of Vitamin B1 is called beriberi.

4. **Types of Beriberi**: There are two types of beriberi:
- **Wet Beriberi**: This type affects the cardiovascular system, leading to symptoms such as heart failure and edema.
- **Dry Beriberi**: This type primarily affects the nervous system, resulting in symptoms like muscle weakness and paralysis.

5. **Eliminate Other Options**:
- **Cirrhosis** is related to Vitamin B2 (Riboflavin) deficiency.
- **Sterility** is associated with Vitamin D deficiency.
- **Convulsions** are linked to Vitamin B6 (Pyridoxine) deficiency.

6. **Conclusion**: Therefore, the correct answer to the question is that the deficiency of Vitamin B1 causes the disease beriberi.