Which period shows negative growth?

Options

A. Infancy
B. Childhood
C. Adolescence
D. Old age

Explanation

**Step-by-Step Solution:**

1. **Understanding Growth Phases:**
- Growth occurs in various stages of life, and each stage has its characteristics. The main stages are infancy, childhood, adolescence, and old age.

2. **Infancy:**
- In the infancy stage, there is rapid cell division and growth. Infants grow quickly during this period, indicating positive growth.

3. **Childhood:**
- Childhood is characterized by an increase in growth hormones and development of body structures. This stage also shows positive growth.

4. **Adolescence:**
- Adolescence, also known as puberty, involves significant hormonal changes. The increase in sexual hormones leads to physical and sexual maturation, which is another phase of positive growth.

5. **Old Age:**
- Old age is the final stage of life where negative growth occurs. During this period, individuals experience deterioration in health, weakness, reduced vision, and fragile bones. This stage marks a decline in growth and overall health.

6. **Conclusion:**
- Based on the analysis of each life stage, it is clear that the period that shows negative growth is **Old Age**.

**Final Answer:**
- The period that shows negative growth is **Old Age**.

---