The correct option is D Genital herpes
Infections or diseases which are transmitted through sexual intercourse are collectively called sexually transmitted infections/diseases.
Genital herpes is a sexually transmitted disease caused by the Herpes Simplex Virus (HSV).
The symptoms of this disease include the development of painful pustules, ulcers, and scabs over the genitalia
followed by fever, headache, etc.
Gonorrhea is caused by Neisseria gonorrhoeae, which is a bacterium.
Syphilis is caused by a bacterium, Treponema pallidum.
Chlamydiasis is also caused by bacteria, Chlamydia trachomatis.
Of all the STDs mentioned above, genital herpes is not completely curable.