AI-generated practice question — model-generated for extra practice, not a previous-year CBSE board question.
(C) Oral hormonal pills
Oral hormonal pills work by changing the hormonal balance of the body so that eggs are not released, preventing fertilisation.
The passage explicitly states that one category of contraceptives "acts by changing the hormonal balance of the body so that eggs are not released." Condoms act as mechanical barriers; Copper-T prevents implantation; surgical blocking of the fallopian tube prevents the egg from reaching the uterus (fertilisation still doesn't occur, but the egg is released). Only oral pills stop egg release itself.