Benthic animals are those, which

Options

A. Are submerged in area
B. Float on the sea surface
C. Are deep dweller in sea
D. Are floating (Free) organisms

Explanation

### Step-by-Step Solution:

1. **Understanding Benthic Animals**:
- Benthic animals are organisms that live on or near the bottom of a body of water, such as oceans, rivers, or lakes. They are often found in environments where light does not penetrate, which typically means they are located in deeper waters.

2. **Analyzing the Options**:
- **Option 1**: "Submerged in area" - This is too vague and does not accurately describe benthic animals, as it could refer to various organisms that are not necessarily bottom dwellers.
- **Option 2**: "Float on the sea surface" - This describes pelagic organisms, which live in the open water column and are not benthic.
- **Option 3**: "Deep dwellers in sea" - This accurately describes benthic animals, as they are indeed found at the bottom of the sea, often in deep waters.
- **Option 4**: "Free-floating organisms" - This refers to plankton, which are not benthic but rather live suspended in the water column.

3. **Identifying the Correct Answer**:
- Based on the analysis, the correct answer is **Option 3: Deep dwellers in sea**. This option correctly identifies the habitat of benthic animals.

### Final Answer:
Benthic animals are those which are deep dwellers in the sea.

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