Answer:
b. extinction
Step-by-step explanation:
The term extinction refers to the process of disappearing a response from an individual's repertoire. In the respondent paradigm, extinction occurs when a conditioned stimulus stops eliciting a particular response. Thus, the conditioned reflex response can disappear if the conditioned stimulus is presented repeatedly without the presence of the unconditioned stimulus, causing the eliciting effect of the conditioned stimulus to cease to exist. For example, if Pavlov, after his responding conditioning experiment, decided to present the bell repeatedly without the presence of food, that bell would cease to function as a saliva elicitor, characterizing a respondent extinction process.