Because— politicians play crucial roles in governing our society
<span>The Chihuahuan Desert is the thing that comes to mind when you ask whichpart covers most of the central part of mexico</span>
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.
I would say either C or D, hope I helped!