An oviparous mammal in the following is

Options

A. platypus
B. kangaroo
C. flying fox
D. blue whale

Answer

To solve the question "An oviparous mammal in the following is," we need to identify which of the given options is an oviparous mammal. Here’s a step-by-step breakdown of the solution:

### Step 1: Understand the Terms
- **Oviparous**: These are animals that lay eggs. They do not give birth to live young ones directly.
- **Mammal**: Mammals are warm-blooded animals that have milk-secreting glands, which allow them to nurse their young.

### Step 2: Analyze the Options
We need to evaluate each option to see if it is an oviparous mammal.

1. **Platypus**:
- The platypus is a mammal that lays eggs. It has milk-secreting glands and is known for its unique reproductive method. Therefore, it is an oviparous mammal.

2. **Kangaroo**:
- The kangaroo is a marsupial mammal. Marsupials give birth to underdeveloped young, which then continue to grow in a pouch. Thus, kangaroos are viviparous (not oviparous).

3. **Flying Fox**:
- The flying fox is a type of bat and is also a viviparous mammal. It gives birth to live young, so it is not oviparous.

4. **Blue Whale**:
- The blue whale is a large marine mammal that also gives birth to live young. It is viviparous and not oviparous.

### Step 3: Conclusion
From the analysis, the only option that fits the criteria of being an oviparous mammal is the **Platypus**.

### Final Answer
**The oviparous mammal is the Platypus.**

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