Which of the following have been found to be very effective as emergency contraceptives,as they could be used to avoid possible pregnancy due to rape or casual unprotected intercourse if administered within $72$ hours?
$A.$ Administration of progestogens
$B.$ Progestogen-estrogen combinations
$C.$ $IUDs$ inserted within $72$ hours of coitus
$A.$ Administration of progestogens
$B.$ Progestogen-estrogen combinations
$C.$ $IUDs$ inserted within $72$ hours of coitus
- A$A$ only
- B$A$ and $B$ only
- C$B$ only
- D$A, B,$ and $C$
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Which one of the following is an example of a hormone-releasing $IUD$?
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$I$. They inhibit ovulation and implantation
$II$. They alter the quality of cervical mucous to prevent or retard the entry of sperms
$III$. They prevent the ejaculated semen from entering the female vagina
$IV$. They inhibit spermatogenesis
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$II$. They alter the quality of cervical mucous to prevent or retard the entry of sperms
$III$. They prevent the ejaculated semen from entering the female vagina
$IV$. They inhibit spermatogenesis
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