Question

An oral contraceptive pill checks
A) Fertilization
B) Implantation
C) Infection
D) Ovulation

Answer 1

Hint: Oral contraceptive pills are also called birth control pills, which are taken orally, and this are the tablets which have a combination of estrogen and progesterone where this are medicines which are first started using in the united states in the year 1960, and later it got the popularity worldwide, and now the oral contraceptives are a second-highest technique used by women around the world for birth control.

Complete answer:
These pills or tablets contain estrogen and progesterone, where estradiol is the form of estrogen present in pill and progestin is the form of progesterone present in the pills.
They are available 28 days pack or 21 days where it is designed in such a way to take every day at the same time, where 21 pills are hormone-containing and 7 are placebo, and they prevent pregnancy by preventing ovulation.
It should be started on the first day of the menstrual cycle, and missing taking pills shows the withdrawal bleeding.
As we know that estrogen and progesterone are sex hormone which regulates the menstruation and pregnancy, where these hormones are released by the ovaries.
As these hormones are taken orally, they increase in concentration in the body and show negative feedback on the pituitary which controls the releasing of follicle-stimulating hormones and luteinizing hormone secreted by the follicles of the ovary, and they stop releasing, so that ovule not get matured and it not released so it prevents pregnancy by preventing ovulation.

So, the correct option is D.

Note: To explain simply, oral contraceptive pills are tablets that contain estrogen and progesterone, which are taken by mouth to prevent pregnancy, and the mechanism which prevents pregnancy is by preventing ovulation by suppressing the release of follicle-stimulating hormone and luteinizing hormone.