Which of the following are the primary hormones in girls during puberty?

Puberty is triggered by the brain, which starts the hormones flowing through the bodies of both boys and girls. The first stage of hormonal reactions starts when the hypothalamus releases a hormone called gonadotropin-releasing hormone (GnRH). This hormone, in turn, signals the pituitary gland, an endocrine gland the size of a pea at the base of the brain, to release luteinizing hormone (LH) and follicle stimulating hormone (FSH). These are the hormones that start the process of sexual development.
oestrogen

Your answer is  d.)relationship between pressure and air volume and led to the understanding of how respiration works