Which of the following statements about the defensive roles of saliva and gastric juices are true?

• A. Saliva’s main function is to move microbes through and out of the gastrointestinal system.
• B. Saliva possesses enzymes that inhibit microbial growth and digest microbes.
• C. Gastric juice’s main function is to destroy microbes and toxins eaten by the host.
• D. Gastric juice is incredibly acidic which breaks down most pathogens.
• E. All of the above are true statements.