Answer:
It is the only method that is 100% successful at preventing STIs.
Explanation:
Abstinence occurs when individuals decide to spend a period of time, or to stay permanently, without participating in any type of sexual intercourse. As there is no sexual contact between people, it is impossible for there to be cases of sexually transmitted infections between them.
Although there are many efficient methods of preventing this type of infection, abstinence is the only one that promotes 100% effectiveness.
