Littoral form of animals are found:

Options

A. in deep sea
B. at freshwater
C. at the bottom of the sea
D. in sea water near the shore

Explanation

### Step-by-Step Solution:

1. **Understanding the Littoral Zone**: The littoral zone refers to the area near the shore of a body of water, such as an ocean, lake, or river. This zone is characterized by its proximity to the shoreline and is subject to the effects of tides and waves.

2. **Characteristics of the Littoral Zone**: The littoral zone is known for its unique environmental conditions, which include variations in temperature and the presence of different types of organisms. It is a dynamic area where water levels fluctuate, affecting the types of organisms that can thrive there.

3. **Location of Littoral Animals**: Littoral animals are found in the littoral zone, which extends from the high water mark down to the area that is submerged during high tide. This includes both coastal environments and freshwater bodies.

4. **Examples of Littoral Animals**: Common examples of animals found in the littoral zone include:
- **Necton**: These are free-swimming organisms that live in the water column, such as fish and some types of marine mammals.
- **Benthos**: These organisms live on or in the seabed, including various types of crustaceans, mollusks, and other bottom-dwelling creatures.

5. **Conclusion**: Therefore, littoral forms of animals are primarily found in the littoral zone, which is the near-shore region of oceans, lakes, and rivers. The correct answer to the question is that littoral animals are found in the littoral zone.