Explanation:

- Option 1: Ovum

- The ovum is the female gamete, responsible for combining with the male gamete.

- It participates in the fertilization process but is not the product of it.

- Option 2: Zygote

- The zygote is the cell formed after the fusion of male and female gametes.

- ?? Correct Answer: This is the stage where a new organism begins its development.

- Option 3: Embryo

- The embryo is the early stage of development after the zygote begins to divide and grow.

- It forms later in the developmental process, after the zygote.

- Option 4: Sperm

- The sperm is the male gamete, which fuses with the ovum (female gamete).

- It is involved in fertilization but is not the result of the process.