Respuesta :
Answer:
D
Explanation:
Scientists have some theories about how IUDs work, but the exact way they function is not known.
The statement 'Scientists understand exactly how they work to prevent pregnancy' is false among all.
So, the D is the correct option.
Scientists have some theories about how IUDs work, but the exact way they function is not known.
The full form of IUD is an intrauterine device. This is small plastic T-shaped device which is used for birth control. It is inserted into the uterus of female body to prevent pregnancy. There are two types of IUDs copper or hormonal. IUDs must be inserted by a healthcare provider. It has serious side effects.
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