What is common to Lantana, Eichhornia and Africa catfish?

Options

A. All are endangered species of India
B. All are key stone species
C. All are mammals found in India
D. All the species are neither threatened nor indigenous species of India.

Explanation

### Step-by-Step Solution:

1. **Identify the Species**: The species in question are Lantana, Eichhornia (commonly known as water hyacinth), and African catfish.

2. **Define Exotic Species**: All three species are classified as exotic species. Exotic species are organisms that are not native to a particular ecosystem and have been introduced from other regions.

3. **Identify Invasive Nature**: These species are also considered invasive. Invasive species are those that, once introduced, can spread rapidly and dominate the ecosystem, often outcompeting native species for resources.

4. **Impact on Ecosystem**: The invasive nature of Lantana, Eichhornia, and African catfish leads to significant ecological consequences. They can disrupt local ecosystems, harm biodiversity, and lead to the decline or extinction of indigenous species.

5. **Conclusion**: Therefore, the commonality among Lantana, Eichhornia, and African catfish is that they are all exotic and invasive species that pose a threat to native biodiversity and ecosystems.