Identify the common Sexually Transmitted Infections (STIs):

The correct answer is Option (4) → Chlamydiasis, Trichomoniasis, Syphilis

Option (4) Chlamydiasis, Trichomoniasis, Syphilis — Correct. Chlamydiasis, trichomoniasis and syphilis are common sexually transmitted infections, along with gonorrhoea, genital herpes, genital warts, hepatitis-B and HIV.

NCERT Extract:
Sexually Transmitted Infections (STIs) – “Infections or diseases which are transmitted through sexual intercourse are collectively called sexually transmitted infections (STI) or venereal diseases (VD) or reproductive tract infections (RTI). Gonorrhoea, syphilis, genital herpes, chlamydiasis, genital warts, trichomoniasis, hepatitis-B and of course, the most discussed infection in the recent years, HIV leading to AIDS are some of the common STIs.”