Star Fish is
(a) Nekton
(b) Neuston
(c) Benthonic
(d) Terrestrial

Options

A. Nekton
B. Neuston
C. Benthonic
D. Terrestrial.

Answer

To determine the classification of a starfish, we need to analyze the options provided:

1. **Understanding the Organism**:
- Starfish, scientifically known as Asterias, is an aquatic organism.

2. **Evaluating the Options**:
- **(a) Nekton**: This term refers to organisms that can swim freely in the water column, such as fish and squid. Starfish do not swim freely; they are primarily found on the sea floor.
- **(b) Neuston**: This term describes organisms that live at the surface of the water, such as certain types of plankton. Starfish do not inhabit the water surface.
- **(c) Benthonic**: This term refers to organisms that live on or near the bottom of aquatic environments. Starfish are commonly found on the ocean floor and feed on benthic organisms.
- **(d) Terrestrial**: This term refers to land-dwelling organisms. Since starfish are aquatic, this option is incorrect.

3. **Conclusion**:
- Since starfish are primarily found on the ocean floor and feed on benthic organisms, the correct classification is **(c) Benthonic**.

### Final Answer:
**(c) Benthonic**