Contraceptive implants deliver progestin, are placed in the upper arm, and typically last for about 3 years. They do not contain estrogen. Therefore, the correct selections are C and D.
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Contraceptive implants primarily deliver a dose of progestin and are placed in the upper arm. They are designed for long-term use, typically up to 3 years, with some variations. Unlike other hormonal contraceptives, they do not contain estrogen. ;