The correct option is D A-2, B-4, C-3, D-1
The table mentions different sexually transmitted diseases and their causative pathogens.
Genital herpes is characterised by the presence of painful blisters on the genitalia and it is caused by a virus called herpes simplex virus.
Trichomoniasis causes foul-smelling vaginal discharge in women and is caused by a protozoan called Trichomonas vaginalis.
Chlamydiasis is characterised by genital pain and discharge and is caused by a bacteria called Chlamydia trachomatis.
Syphilis starts as a painless sore and then may spread to other parts of the body; it is caused by a bacteria called Treponema pallidum.