An automatic response to some stimulus is called

A) associative learning.
B) respondent behavior.
C) observational learning.
D) operant behavior.

Respondent Behavior

Actions that occur as an automatic response to some stimulus, typically conditioned through learning processes.

Stimulus

Any event or situation that evokes a response.

Automatic Response

A reflexive, involuntary reaction to a stimulus, which occurs without conscious thought, often as a result of learned behaviors or innate reflexes.