An occurrence that currently does not produce a response when it is presented. group of answer choices a) neutral stimulus b) conditioned response c) unconditioned response d) unconditioned stimulus.

A) neutral stimulus

Explanation:

A Russian physiologist proposed the mechanism of learning through association.

This process of learning involves the association of two or more stimuli to produce a new type of learning or response and John Watson named this mechanism as Classical conditioning.

The classical conditioning occurs in three stages: Before, during and after conditioning.  In before conditioning, there is a stimulus which does not produce response but with an unconditioned response produces a response called the neutral stimulus.

Thus, a neutral stimulus is the correct answer.

•there must be variation for the particular trait within a population.

•the variation must be inheritable (that is, it must be capable of being passed on from the parents to their offspring).

•individuals with one version of the trait must produce more offspring than those with a different version of the trait.good

explanation:

the answer is b. glad to .