Answer:
D. HIV
Explanation:
Sexually transmitted infections are infections caused by viruses, bacteria, or other microbes that are transmitted primarily through unprotected sex with an infected person, and usually manifest through wounds, discharge, blisters, or warts. . Some of these infections are easy to treat, others are more difficult to treat, and there are even those that have no cure. However, with the advancement of medical treatments, a person can have a normal life even with an incurable sexually transmitted infection.
A person already infected with a sexually transmitted disease is at greater risk of contracting HIV, in part because of the negligent behavior of not using condoms, and people already infected with a disease have a weakened immune system.
