Final answer:
Meiosis II for the female gamete is completed upon fertilization, leading to the creation of an ovum and the formation of a diploid zygote.
Step-by-step explanation:
Meiosis II for the female gamete is completed upon fertilization. This event triggers the secondary oocyte, which has been arrested in metaphase of meiosis II, to swiftly complete meiosis II. Consequently, a mature ovum is formed alongside a second polar body that eventually disintegrates. The fusion of the haploid nuclei from the sperm and the ovum creates a diploid zygote, which contains the genetic information necessary to develop into a human.
Therefore, the correct answer to the question 'At what point is meiosis II completed for the female gamete?' is B) fertilization. Options A) ovulation, C) implantation, and D) puberty, do not represent the stage at which meiosis II is completed.