The extinct human ancestor, who are only fruits and hunted with stone weapons was

Options

A. Ramapithecus
B. Australopithecus
C. Dryopithecus
D. Homo erectus.

Explanation

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks for an extinct human ancestor that primarily consumed fruits and used stone weapons for hunting.

2. **Identifying Relevant Groups**: We need to consider the group of primates, which includes all apes, monkeys, and humans. The evolution of humans involves understanding the divergence from other primates.

3. **Exploring Fossil Evidence**: Fossils provide insights into the evolutionary process. We need to identify which of the known extinct human ancestors fits the description of eating fruits and using stone tools.

4. **Analyzing Extinct Ancestors**:
- **Ramapithecus** and **Dryopithecus**: Both lived around 12-15 million years ago. Ramapithecus was more man-like but not advanced enough to use stone tools, while Dryopithecus was more ape-like.
- **Homo erectus**: This species was more advanced but is believed to have consumed meat, which does not fit the criteria of eating only fruits.

5. **Identifying the Correct Ancestor**: The genus **Australopithecus** is known to have lived around 3 million years ago. It is believed that they primarily consumed fruits and had the cognitive ability to use stone tools for hunting.

6. **Conclusion**: Based on the analysis, the correct answer to the question is **Australopithecus**.

**Final Answer**: The extinct human ancestor who primarily ate fruits and hunted with stone weapons is **Australopithecus**.

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