How can classical conditioning be used to counterconditioning an unwanted response?

This is a major archaeological site that was once a regional center to the mayan empire in ancient mesoamerica.

Symptoms of include nausea, vomiting, improper digestion, and severe abdominal pain, and sufferers may develop diabetes. a. pancreatitis b. hepatitis c. gastritis d. none of the above

Most signs are diamond-shaped, with a yellow background and black letters or symbols. a. regulatory b. guide c. warning d. construction