Legs attain their proper proportionate size in human beings at the age of

Options

A. Birth
B. Two years
C. Ten years
D. 18 years

Answer

To determine at what age legs attain their proper proportionate size in human beings, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Human Growth Patterns**:
- In newborns, there is a noticeable disproportion between the size of the head and the body. The head is about one-fourth of the total body length, while in adults, it is about one-seventh.

2. **Analyzing Limb Growth**:
- Similar to the head, the limbs (arms and legs) also undergo growth at different rates. Arms tend to grow faster than legs during early childhood.

3. **Identifying the Age of Proportionate Growth**:
- Research and observations indicate that legs do not attain their proportionate size until around the age of 10 years. This is when the growth of the legs aligns more closely with the rest of the body.

4. **Conclusion**:
- Based on the analysis, we conclude that the proper proportionate size of legs in human beings is typically attained at the age of 10 years.

### Final Answer:
Legs attain their proper proportionate size in human beings at the age of **10 years**.

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