Which one is irrelevant to evolution of man?

Options

A. Perfection of hand for tool making
B. Change of diet from hard nuts and hard roots to soft food
C. Loss of tail
D. Increase in the ability to communicate with others and develop community behaviour

Answer

**Step-by-Step Text Solution:**

1. **Understanding the Question**: The question asks which statement is irrelevant to the evolution of man. This means we need to identify which option does not contribute to the evolutionary changes that occurred in human beings.

2. **Analyzing the Options**:
- **Option 1: Perfection of hand for tool making**: This statement is relevant to human evolution. The development of an opposing thumb allowed early humans to create and use tools effectively, which is a significant evolutionary advancement.

- **Option 2: Change of diet from hard nuts and hard roots to soft foods**: This statement is considered irrelevant to the evolutionary process. While dietary changes occurred, they are more related to social and cultural evolution rather than biological evolution.

- **Option 3: Loss of tail**: The loss of the tail is relevant to evolution. It indicates a transition from primate ancestors that had tails to modern humans who do not. The vestigial tail in some species is also a remnant of this evolutionary change.

- **Option 4: Increase in the ability to communicate and develop community behavior**: This statement is also relevant. The ability to communicate and form communities is crucial for social evolution and has played a significant role in the survival and development of human societies.

3. **Conclusion**: After analyzing all the options, the statement that is irrelevant to the evolution of man is **Option 2: Change of diet from hard nuts and hard roots to soft foods**. This change is more of a cultural adaptation rather than a biological evolutionary change.

**Final Answer**: The irrelevant option to the evolution of man is **Option 2**.

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