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a
Implants and injections
b
Oral pills and implants
c
IUDs and injections
d
Vaults and cervical caps
answer is D.
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Detailed Solution
Vaults and cervical caps are barrier methods which are devoid of hormones. They physically obstruct the meeting of sperm and ova.Progestogen is a component of many contraceptives like IUDs, implants, injectables and oral contraceptives.