Which of the following doesn't involve anthropogenic action?

Options

A. Development of various breeds of dogs
B. Development of various of cabbage
C. Development of various resistant organisms
D. Development of various of marsupials

Answer

To solve the question "Which of the following doesn't involve anthropogenic action?", we will analyze each option provided in the context of anthropogenic actions.

### Step-by-Step Solution:

1. **Understand Anthropogenic Action**:
- Anthropogenic actions refer to activities that are produced or caused by humans. This includes any changes to the environment or living organisms that result from human intervention.

2. **Evaluate Each Option**:
- **Option 1: Development of various breeds of dog**:
- This involves selective breeding by humans to create different dog breeds. This is a clear example of anthropogenic action.

- **Option 2: Development of various cabbages**:
- Similar to dogs, the different forms of cabbage (like broccoli, red cabbage, etc.) have been developed through human agricultural practices. This also qualifies as anthropogenic action.

- **Option 3: Development of various resistant organisms**:
- This refers to the human-induced development of organisms that can resist certain conditions or diseases, often through genetic engineering or selective breeding. This is another example of anthropogenic action.

- **Option 4: Development of various marsupials**:
- Marsupials evolved through a natural process known as adaptive radiation, where species adapt to different environments over time without human intervention. This process does not involve anthropogenic action.

3. **Conclusion**:
- The option that does not involve anthropogenic action is the development of various marsupials.

### Final Answer:
The correct answer is **the development of various marsupials**.

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