The correct option is C After fertilization, the formed embryo develops into zygote.
In sexual reproduction in plants, pollen grains produced in the pollen sac reach the stigma of a flower and then germination takes place. A long tube is formed from the pollen grains that reaches the ovary. The male reproductive cell of the pollen grain travels down through long pollen tube to the ovary where it fuses with the female reproductive cell. Once pollen grain enters the ovary, fertilisation happens and zygote is formed. The zygote develops into embryo. The ovary develops into fruit and ovules into seeds.