A) Gonorrhoea, Malaria, Genital herpes
B) AIDS, Malaria, Filaria
C) Cancer, AIDS, Syphilis
D) Gonorrhoea, Syphilis, Genital herpes
Explanation
[Solution] Gonorrhoea, syphilis and genital herpes are all STDs; malaria, filaria and cancer are not. Answer (4).