What does a biological indicator confirm?

A biological indicator is a crucial tool used to validate sterilization processes. It specifically contains viable microorganisms that are used to assess the effectiveness of sterilization methods. When a biological indicator is subjected to a sterilization process, if the indicator shows that the microorganisms have been destroyed, it confirms that the sterilization procedure has achieved its intended purpose. Therefore, selecting the option that states sterilization has been verified is correct, as it aligns with the primary function of biological indicators in ensuring that instruments and materials have been adequately sterilized, ensuring safety and efficacy in medical and cosmetic practices.