The copper used in Copper T has the following action?

Correct option is D

Sol. Copper in Copper T (IUCD) acts primarily as a spermicidal agent, meaning it kills or inactivates sperm before they reach the egg. Copper ions released from the device increase uterine and tubal fluids' toxicity to sperm, preventing fertilization.
Explanation of each option:
· (a) Blastocidal – This term refers to killing a blastocyst (early embryo); Copper T acts before fertilization, so it is not blastocidal.
· (b) Bacteriostatic – Means inhibiting bacterial growth. Copper T does not have antibacterial effects in this context.
· (c) Bacteriocidal – Refers to killing bacteria, not applicable to contraception as Copper T targets sperm, not microbes.
· (d) Spermicidal – Correct. Copper creates an environment toxic to sperm, reducing motility and viability, thereby preventing fertilization.