Net-EN contraceptive injections contain:

Correct option is C

Net-EN is a progestin-only injectable contraceptive containing norethisterone enanthate. It provides long-acting contraception by inhibiting ovulation and altering cervical mucus. It is administered every 2 months intramuscularly and is a reliable method of birth control in women seeking long-term but reversible contraception.
Explanation of options: (a) ✘ Norepinephrine ease nonoxynol – Incorrect combination; not a contraceptive component. (b) ✘ Norepinephrine enantiomer – Epinephrine analog, unrelated to hormonal contraception. (c) ✔ Norethisterone enanthate – Active hormone in Net-EN used for birth control. (d) ✘ Nono-estradiol edetate – Invalid term, not a recognized contraceptive agent.