Which of the following statements is true regarding boiling as a strategy to control microbe levels?

• A. Boiling is an efficient sterilization method for all types of contaminants.
• B. Boiling is only effective against bacteria, not viruses or protozoans.
• C. Boiling eliminates most pathogenic microbes, excluding endospores.
• D. Boiling can cause microorganisms to become more resistant to heat.

Answer: (C)