Which among the following is true ?

Options

A. Platypus is oviparous .
B. Bat have feather
C. Elephant is ovo viviporous
D. Diaphragm is absent in them.

Answer

To determine which statement among the options is true, we will analyze each statement one by one.

### Step-by-Step Solution:

1. **Analyze the first statement: "Platypus is oviparous."**
- The platypus is indeed an egg-laying mammal, which means it is oviparous. This statement is true.

2. **Analyze the second statement: "Bats have feathers."**
- Bats do not have feathers. Instead, their forelimbs are adapted to form wings, which are covered with a membrane. This statement is false.

3. **Analyze the third statement: "Elephant is ovoviviparous."**
- Elephants are viviparous, meaning they give birth to live young rather than laying eggs. This statement is false.

4. **Analyze the fourth statement: "Diaphragm is absent in them."**
- All mammals, including bats and elephants, possess a diaphragm, which is a muscle that aids in respiration. This statement is also false.

### Conclusion:
After analyzing all the statements, the only true statement is: **"Platypus is oviparous."**

### Final Answer:
The correct answer is: **Platypus is oviparous.**

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