Fertilisation which takes place inside the female body is called :

Options

A. Internal fertilisation
B. External fertilisation
C. Both of these
D. None of these

Explanation

**Step-by-Step Solution:**

1. **Understanding Fertilization**: Fertilization is the process where male and female gametes (sperm and egg) fuse to form a zygote. This is a crucial step in sexual reproduction.

2. **Types of Fertilization**: There are two main types of fertilization:
- **External Fertilization**: This occurs outside the female body. In this process, both male and female gametes are released into the environment (usually water), where fertilization occurs.
- **Internal Fertilization**: This occurs inside the female body. In this process, the male gamete (sperm) fertilizes the female gamete (egg) within the female reproductive system.

3. **Identifying the Correct Type**: The question specifically asks for fertilization that takes place inside the female body. Based on the definitions:
- Since the fusion of male and female gametes occurs inside the female body, this type of fertilization is called **internal fertilization**.

4. **Conclusion**: Therefore, the correct answer to the question is **internal fertilization**.

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