Select the odd number from the list -

Options

A. Aptenodytes (penguin)
B. Pavo (Peacock)
C. Calotes
D. Psittacula'(parrot)

Answer

To solve the question of selecting the odd number from the list, we will analyze each option provided.

### Step-by-Step Solution:

1. **Identify the Options**: The options given are:
- Option 1: Pteranodites (matched with Penguin)
- Option 2: Pavo (matched with Peacock)
- Option 3: Calortus
- Option 4: Sitakula (matched with Parrot)

2. **Classify Each Option**:
- **Pteranodites**: This is a scientific name associated with penguins, which are birds.
- **Pavo**: This is the scientific name for peacocks, which are also birds.
- **Calortus**: This is not associated with birds; it is a genus of lizards, which are reptiles.
- **Sitakula**: This is the scientific name for parrots, which are birds.

3. **Determine the Odd One Out**:
- From the analysis, options 1 (Pteranodites), 2 (Pavo), and 4 (Sitakula) are all names of birds (penguins, peacocks, and parrots).
- Option 3 (Calortus) is a genus of lizards, which makes it a reptile.

4. **Conclusion**: Since Calortus is the only option that does not belong to the class of birds, it is the odd one out.

### Final Answer:
The odd number from the list is **Option 3: Calortus**.