A. Fusion of sperm and egg nuclei
B. Pollen grain landing on a sticky stigma
C. Ejaculation of the egg and pollen grain
D. Ejaculation of sperm into the female body

Correct Answer: Option D

D. Ejaculation of sperm into the female body

Explanation

Ejaculation of sperm into the vagina is an example of fertilization in mammals.

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