Which of the following options has examples of viviparous animals only ?

Options

A. Lizard, Turtle
B. Platypus, Crocodile
C. Cow, Crocodile
D. Whale, Mouse

Answer

To determine which option contains only viviparous animals, we need to understand the definition of viviparous animals and analyze each option accordingly.

### Step-by-Step Solution:

1. **Understand Viviparous Animals**:
- Viviparous animals are those that give birth to live young rather than laying eggs. The development of the embryo occurs inside the female's body.

2. **Analyze the Options**:
- **Option 1: Lizard, Turtle**
- Lizards are oviparous (egg-laying).
- Turtles are also oviparous.
- **Conclusion**: This option is incorrect as both are oviparous.

- **Option 2: Platypus, Crocodile**
- The platypus is a unique animal that lays eggs (oviparous).
- Crocodiles are also oviparous.
- **Conclusion**: This option is incorrect as both are oviparous.

- **Option 3: Cow, Crocodile**
- Cows are viviparous (give birth to live young).
- Crocodiles are oviparous.
- **Conclusion**: This option is incorrect as only the cow is viviparous.

- **Option 4: Whale, Mouse**
- Whales are viviparous (give birth to live young).
- Mice are also viviparous.
- **Conclusion**: This option is correct as both are viviparous.

3. **Final Answer**:
- The option that contains only viviparous animals is **Whale, Mouse**.