Explanation
The correct answer is C: Anthesis.
Anthesis is the phenomenon of the opening of flower buds, which marks the time when the flowers are fully open and ready for pollination. During anthesis, the sepals, petals, and stamens of the flower open up, exposing the reproductive structures (stigma, style, and ovary) to potential pollinators such as bees, butterflies, or birds. The timing of anthesis is often synchronized with the activity of pollinators to maximize the chances of successful pollination.
Gametogenesis is the process of formation of gametes (sperm or eggs) in sexually reproducing organisms, while sporogenesis is the process of formation of spores in plants or fungi. Therefore, neither gametogenesis nor sporogenesis is the correct answer to this question.
