- A Gonorrhoea
- B Syphilis
- C Chlamydia
- D Trichomoniasis
Correct answer: B. Syphilis
Explanation: Syphilis is caused by the spirochete bacterium Treponema pallidum. It progresses through primary, secondary, and tertiary stages if untreated.
Concept context
Understand reproductive health, family planning, contraception methods, STIs, population control, and assisted reproductive technologies.