Final answer:
The correct answer is A) Bacterial; Viral, as chlamydia and gonorrhea are both caused by bacteria, and there are also STIs like genital herpes and HPV that are caused by viruses. Bacterial STIs can usually be cured with antibiotics, whereas viral STIs can be managed but not completely cured.
Step-by-step explanation:
The correct answer to the question is A) Bacterial; Viral. This is because the sexually transmitted infections (STIs) mentioned, chlamydia and gonorrhea, are examples of STIs caused by bacteria.
Bacterial STIs, such as chlamydia, gonorrhea, and syphilis can usually be cured with antibiotics. Chlamydia is the most commonly reported STI and infections are typically asymptomatic, so screening is important for treatment and prevention of complications. Gonorrhea can infect the reproductive and urinary tracts and may lead to more severe issues if left untreated.
Viral STIs include infections like genital herpes, hepatitis B, HPV (which causes genital warts), and HIV/AIDS. Unlike bacterial STIs, viral STIs cannot be completely cured but can often be managed with antiviral drugs.