Which one of the following is oviparous ?

Options

A. Platypus
B. Flying fox (bat)
C. Elephant
D. Whale

Explanation

To determine which of the following animals is oviparous, we need to understand the definition of oviparous and analyze the given options.

### Step-by-Step Solution:

1. **Understand Oviparous**:
- Oviparous animals are those that lay eggs. The term "ov" refers to eggs, and these animals do not give live birth; instead, they lay eggs that develop and hatch outside the mother’s body.

2. **Identify the Options**:
- The options provided are:
- A) Platypus
- B) Flying Fox (Bat)
- C) Elephant
- D) Whale

3. **Analyze Each Option**:
- **Platypus**: This is a primitive mammal known for laying eggs, which is a characteristic of oviparous animals.
- **Flying Fox (Bat)**: Bats are mammals that give live birth, making them viviparous.
- **Elephant**: Elephants are also mammals and give live birth, hence they are viviparous.
- **Whale**: Whales are mammals as well and give live birth, classifying them as viviparous.

4. **Conclusion**:
- Among the options, only the **Platypus** is oviparous because it lays eggs, while the other three (Flying Fox, Elephant, and Whale) are viviparous as they give birth to live young.

### Final Answer:
- The correct answer is **A) Platypus**.