The people dependent exclusively on maize diet , are more likely to suffer from

Options

A. Pellagra
B. Rickets
C. Beriberi
D. Pernicious anaemia

Answer

### Step-by-Step Solution:

1. **Identify the Diet**: The question states that the people are dependent exclusively on a maize diet.

2. **Nutritional Content of Maize**: Understand that maize (corn) is primarily composed of carbohydrates and lacks certain essential nutrients, particularly vitamins.

3. **Vitamin Deficiencies**: Recognize that a diet solely based on maize can lead to deficiencies in specific vitamins. In particular, maize is low in vitamin B3 (niacin).

4. **Link Vitamin Deficiency to Diseases**:
- Pellagra is associated with a deficiency of niacin (vitamin B3).
- Symptoms of pellagra include dementia, diarrhea, dermatitis, and skin inflammation.
- Other options provided in the question:
- Rickets is caused by a deficiency of vitamin D.
- Beriberi is due to a deficiency of vitamin B1 (thiamine).
- Pernicious anemia is related to a lack of red blood cells, often due to vitamin B12 deficiency.

5. **Conclusion**: Based on the information, people who depend exclusively on a maize diet are more likely to suffer from pellagra due to the deficiency of niacin.

### Final Answer:
The people dependent exclusively on a maize diet are more likely to suffer from **pellagra**.

---