Progestasert and LNG-20 are the examples of:

The correct answer is Option (2) → Hormone releasing IUD's

Option (2) Hormone releasing IUD's — Correct. IUDs (intra uterine devices) may be non-medicated (Lippes loop), copper releasing (CuT, Cu7, Multiload 375) or hormone releasing. Progestasert and LNG-20 are hormone releasing IUDs; they also make the uterus unsuitable for implantation and the cervix hostile to sperms.

Note: A similar question was also asked in CUET (UG) 2025 on 26-05-2025 (Slot 2).

NCERT Extract:
Population Stabilisation and Birth Control – “… Another effective and popular method is the use of Intra Uterine Devices (IUDs). These devices are inserted by doctors or expert nurses in the uterus through vagina. These Intra Uterine Devices are presently available as the non-medicated IUDs (e.g., Lippes loop), copper releasing IUDs (CuT, Cu7, Multiload 375) and the hormone releasing IUDs (Progestasert, LNG-20) (Figure 3.2).”