Peacock is

Options

A. Passer domesticus
B. Pavo cristatus
C. Archeopterx lithographica
D. Psittacula eupatrica

Answer

### Step-by-Step Solution:

1. **Identify the Class of the Peacock**:
- The peacock belongs to the class Aves, which includes all birds.

2. **Understand the Characteristics of Birds**:
- Birds have specific adaptations that enable flight, such as modified forelimbs (wings), pneumatic bones (hollow bones), and an absence of a urinary bladder.
- Their excretory product is uric acid, which helps conserve water.

3. **Examine the Given Options**:
- The options provided are:
- **Option 1**: Pasidomesticus (common house sparrow)
- **Option 2**: Paevochrystasis (peacock)
- **Option 3**: Archaeopteryx lithographica (fossil bird)
- **Option 4**: Citacola (parrot)

4. **Analyze Each Option**:
- **Option 1**: Pasidomesticus refers to the common house sparrow, which is not the peacock.
- **Option 2**: Paevochrystasis is the correct scientific name for the peacock.
- **Option 3**: Archaeopteryx lithographica is a fossil bird and not related to the peacock.
- **Option 4**: Citacola refers to a parrot, which is also not the peacock.

5. **Select the Correct Answer**:
- Based on the analysis, the correct answer is **Option 2: Paevochrystasis**.

### Final Answer:
The peacock is **Paevochrystasis**.

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