Which one is irrelevant to evolution of man?

Options

A. Perfection of hand for tool making
B. Change of diet from hard nuts/roots to soft food
C. Increased ability to communicate or develop community behaviour
D. Loss of tail

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks which statement is irrelevant to the evolution of man. We need to analyze each option provided.

2. **Analyzing the Options**:
- **Perfection of hand for tool making**: This is relevant because the development of hands for tool-making was crucial for survival and adaptation in early humans.
- **Change of diet from hard nuts/roots to soft food**: This suggests a shift in dietary habits. While humans have adapted their diets over time, this statement implies a complete shift which is not entirely accurate, as humans still consume hard nuts and roots. Thus, this option seems less relevant.
- **Increased ability to communicate**: Communication is essential for social interaction and survival, making this statement relevant to human evolution.
- **Developed community behavior**: Community behavior is also critical for survival and social structure, thus relevant to evolution.
- **Loss of tail**: This is a biological change that occurred during evolution, making it a relevant statement.

3. **Identifying the Irrelevant Statement**: After analyzing all the options, the statement about the "change of diet from hard nuts/roots to soft food" is the least relevant to the evolution of man because it suggests a complete transition rather than an adaptation.

4. **Conclusion**: The irrelevant statement regarding the evolution of man is the "change of diet from hard nuts/roots to soft food."

**Final Answer**: Change of diet from hard nuts/roots to soft food.

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