Read the following text and answer the following question on the basis of the same :
Excessive exploitation of species , whether a plant or animal reduces the size of its population , so it becomes vulnerable to extinction . Such as Dodo and passenger pigeon have become extinct due to over exploitation by humans . Thus the world is facing accelerated rates of species extinctions , largely due to human interference .
_________ is the first major cause of species extinction .

Options

A. Coextinction
B. Over exploitation
C. Habitat destruction
D. Alien species invasion .

Explanation

**Step-by-Step Solution:**

1. **Understanding the Text**: The text discusses how excessive exploitation of species, whether plants or animals, leads to a reduction in their population size, making them vulnerable to extinction. It provides examples like the Dodo and the passenger pigeon, which became extinct due to human activities.

2. **Identifying the Cause of Extinction**: The question asks for the first major cause of species extinction. The text implies that human interference, particularly through over-exploitation, is a significant factor contributing to the accelerated rates of species extinctions.

3. **Analyzing the Options**: The options provided in the video transcript include:
- Co-extinction
- Over-exploitation
- Habitat destruction
- Alien species invasion

4. **Evaluating Each Option**:
- **Co-extinction**: This refers to the extinction of one species leading to the extinction of another that is dependent on it. While it is a relevant concept, it is not the first major cause of extinction.
- **Over-exploitation**: This is the excessive use of species, which leads to population decline. However, it is not the first major cause mentioned in the context of the text.
- **Habitat destruction**: This is identified as the major cause of species extinction. It refers to the loss of natural environments where species live, which is crucial for their survival.
- **Alien species invasion**: This involves non-native species disrupting local ecosystems, but it is not considered the primary cause of extinction.

5. **Conclusion**: Based on the analysis, the first major cause of species extinction is **habitat destruction**.

**Final Answer**: Habitat destruction is the first major cause of species extinction.

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