Sterilization is the process in which all living organisms, including microbial endospores, are destroyed. A disinfectant is an antimicrobial agent used on inanimate objects such as an instrument. An antiseptic is an antimicrobial agent used on the skin externally. Antibiotics are administered either topically, orally or intravenously and can cause side-effects. Based on this information, the correct option is

• Correct answer
  A

  Viruses are destroyed by sterilization of inanimate objects, and not by antibiotics.
• B

  Antibiotics work equally well on bacteria, fungi, and viruses.
• C

  In contrast to antiseptics, an antibiotic is specific to a single species of microorganism.
• D

  Disinfectants and antiseptics completely destroy all forms of life.

Hence, the correct answer is option: 'A'.