The correct option is C Pills, injections and implants
Hormonal contraceptives contain either progestogens alone or combination of both progestogen–estrogen. These can be used as a contraceptive in the form of pills, skin implants and injections.
Pills inhibit ovulation and prevent implantation. They also alter the quality of cervical mucus, thus preventing the entry of the sperms.
Implants are rods placed under the skin in the upper parts of the buttocks or the arms. Being similar to pills in function, their efficacy is 99%.
Injections are administered intravenously which consist of progestogens alone or progestogens in combination with estrogen.