The arms attain their proportionate size in human beings at

Options

A. Soon after birth
B. Age of two years
C. Ten years of age
D. Fourteen years of age

Answer

To determine when the arms attain their proportionate size in human beings, we can analyze the growth patterns of the human body. Here’s a step-by-step solution:

### Step 1: Understand Human Growth Patterns
Human growth is characterized by various stages where different body parts grow at different rates. In infants, certain body parts, like the head, are disproportionately larger compared to the rest of the body.

**Hint:** Consider how body proportions change from infancy to adulthood.

### Step 2: Analyze the Given Options
The options provided are:
1. Soon after birth
2. Age of 2 years
3. Age of 10 years
4. Age of 14 years

**Hint:** Think about the typical growth milestones for children.

### Step 3: Identify Growth of Arms
The arms, like other body parts, experience growth spurts. However, they tend to reach their proportionate size earlier than some other parts of the body, such as the legs.

**Hint:** Recall that different body parts have different growth timelines.

### Step 4: Determine the Correct Age for Proportionate Arms
Based on the understanding of growth patterns, the arms begin to attain their proportionate size soon after birth. This is because they grow in relation to the overall body size during the early stages of life.

**Hint:** Consider the developmental stages of infants and how their limbs grow in proportion to their bodies.

### Step 5: Conclusion
Therefore, the correct answer to the question is that the arms attain their proportionate size in human beings soon after birth.

**Final Answer:** Option 1 - Soon after birth.