Correct option is A
Ans. (a)
Sol. Genital warts are caused by specific strains of the human papillomavirus (HPV), especially types 6 and 11. It is one of the most common sexually transmitted infections.
Explanation of each option:
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(a) HPV –
Correct. Main causative agent of genital warts.
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(b) PID – A complication of other STDs, not a cause of warts.
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(c) Neisseria gonorrhoeae – Causes gonorrhea, not warts.
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(d) Herpes simplex virus – Causes genital herpes, not warts.