Oral pills used for birth control change the hormonal balance of the body. How do these prevent pregnancy? Select the correct option.

Correct option is D

The correct answer is option (d) Eggs are not released and no fertilization.

Key Points:-

Oral contraceptive pills primarily work by altering hormonal levels in the body to prevent ovulation. Here’s how they achieve this:

• Inhibition of Ovulation: OCPs maintain consistent hormone levels, which suppress the release of luteinizing hormone (LH) and follicle-stimulating hormone (FSH) from the pituitary gland .This suppression prevents the ovaries from releasing eggs.
  
• Thickening of Cervical Mucus: Progestin in the pills thickens cervical mucus, making it difficult for sperm to enter the uterus.
  
• Changes in Uterine Lining: The pills also alter the endometrial lining, making it less suitable for implantation should fertilization occur.