Double fertilisation involves

Options

A. Syngamy + triple fusion
B. Double fertilisation
C. Development of antipodal cells
D. None of the above

Explanation

### Step-by-Step Solution:

1. **Understanding Double Fertilization**:
- Double fertilization is a unique process that occurs in flowering plants (angiosperms). It involves two distinct fertilization events occurring simultaneously.

2. **Identifying the Components of Double Fertilization**:
- The two key processes involved in double fertilization are:
- **Syngamy**: This is the fusion of one male gamete (sperm cell) with the female gamete (egg cell) to form a zygote.
- **Triple Fusion**: This involves the fusion of the second male gamete with two polar nuclei present in the embryo sac, resulting in the formation of the triploid endosperm.

3. **Analyzing the Given Options**:
- The options provided are:
- Double fertilization
- Development of antipodal cells
- Syngamy plus triple fusion
- None of the above
- Among these, "syngamy plus triple fusion" accurately describes the process of double fertilization.

4. **Conclusion**:
- Therefore, the correct answer to the question "Double fertilization involves" is **syngamy plus triple fusion**.