Researchers have identified several different types of traumatic conditioning experiences that can contribute to the development of a phobia. If Carlos was attacked by a bear while camping as a child and now has a bear phobia, for example, we would say that his phobia was acquired via

Answer: classical conditioning

Explanation: Phobia are acquired through classical conditioning and maintained via operant conditioning, Carlos acquired the phobia because of his encounter with the bear thus, classical conditioning way of acquiring phobia. The operant conditioning of the Carlos's phobia is due to the fact that he still avoids bears i. e he keeps or maintained his phobia.