Final answer:
Hormonal contraceptives work by preventing ovulation, the release of an egg from the ovaries, and they also change the lining of the uterus and cervical mucus to stop sperm from reaching an egg.
Step-by-step explanation:
Hormonal contraceptives work primarily by preventing ovulation, which means they stop the ovaries from releasing an egg. This is achieved through the administration of synthetic hormones, such as estrogen and/or progestin. The correct answer to how hormonal contraceptives work is B. By preventing ovulation. The pill is one example of a hormonal contraceptive and includes a combination of estrogen and progestin. It must be taken daily to maintain its effectivity. Additionally, it causes changes in the lining of the uterus and alters the consistency of the cervical mucus to prevent sperm from reaching an egg. Hormonal methods can also include options like the skin patch, injections, and IUDs, all of which are designed to interfere with the body’s natural reproductive cycle to prevent pregnancy.