The correct option is D A-II, B-III, C-IV, D-I
Diseases or infections that are transmitted through unsafe sexual intercourse are called sexually transmitted diseases (STDs). Gonorrhea, syphilis, genital warts, and AIDS are some of the common STDs. Gonorrhea is caused by the bacterium Neisseria gonorrhoeae. Syphilis is caused by the bacteria Treponema pallidum. Genital warts are caused by the Human Papilloma Virus (HPV). Acquired immunodeficiency syndrome (AIDS) is caused by the Human Immunodeficiency Virus (HIV).