Which among these is correct combination of aquatic mammals

Options

A. Seals, Dolphins, Sharks
B. Dolphins, Seals, Trygon
C. Whales, Dolphins, Seals
D. Trygon, Whales, Seals

Answer

To determine the correct combination of aquatic mammals, we need to analyze each option provided in the question.

### Step-by-Step Solution:

1. **Identify Aquatic Mammals**:
- Aquatic mammals are those mammals that are primarily adapted to living in water. Examples include seals, dolphins, and whales.

2. **Evaluate Each Option**:
- **Option 1: Seals, Dolphins, Sharks**:
- Seals: Aquatic mammal.
- Dolphins: Aquatic mammal.
- Sharks: Not a mammal; they belong to the class Chondrichthyes (cartilaginous fish).
- **Conclusion**: This option is incorrect.

- **Option 2: Dolphins, Seals, Trigon**:
- Dolphins: Aquatic mammal.
- Seals: Aquatic mammal.
- Trigon: Not a mammal; it is a type of stingray, also belonging to Chondrichthyes.
- **Conclusion**: This option is incorrect.

- **Option 3: Whales, Dolphins, Seals**:
- Whales: Aquatic mammal.
- Dolphins: Aquatic mammal.
- Seals: Aquatic mammal.
- **Conclusion**: This option is correct.

- **Option 4: Trigon, Whales, Seals**:
- Trigon: Not a mammal; it is a type of stingray.
- Whales: Aquatic mammal.
- Seals: Aquatic mammal.
- **Conclusion**: This option is incorrect.

3. **Final Answer**:
- The correct combination of aquatic mammals is **Whales, Dolphins, and Seals**.