Which one of the following is not a poisonous snake ?

Options

A. Cobra
B. Viper
C. Python
D. Krait

Explanation

To determine which of the following snakes is not poisonous, we can follow these steps:

1. **Identify the Types of Snakes**: Understand that snakes can be classified into two main categories: poisonous (venomous) and non-poisonous (non-venomous).

2. **List the Given Options**: The options provided are:
- Cobra
- Viper
- Python
- Great (likely referring to the Great Horned Snake or similar)

3. **Evaluate Each Option**:
- **Cobra**: Known to be a highly venomous snake.
- **Viper**: Also recognized as a venomous snake.
- **Python**: This snake is non-poisonous. It is a constrictor, meaning it kills its prey by wrapping around it and suffocating it rather than using venom.
- **Great**: Generally considered to be a venomous snake.

4. **Conclusion**: Among the options, the only snake that is not poisonous is the Python.

Thus, the answer to the question "Which one of the following is not a poisonous snake?" is **Python**.