What are the events that lead to only one or a few oocytes being ovulated among the many which attempt to mature?

During the menstrual cycle, several follicles begin to mature, but typically only one becomes dominant due to a combination of hormonal regulation and competition for resources. Follicle-stimulating hormone (FSH) promotes the growth of these follicles, but only the dominant follicle is able to produce sufficient estrogen to suppress the growth of the others. As estrogen levels rise, they trigger a surge in luteinizing hormone (LH), leading to ovulation of the dominant follicle. The remaining follicles undergo atresia, a process of programmed cell death, resulting in only one or a few oocytes being ovulated.