If a person takes an aspirin and the aspirin makes a headache go away, then the person becomes more likely to take an aspirin for a headache in the future. This example illustrates that the aspirin acts as a(n):

negative reinforcer

Explanation:

In operant conditioning which involves learning being brought about by the consequence of a behavior, a negative reinforcer increases the likelihood of a behavior to be exhibited by the removal of an unpleasant or aversive stimulus.

Aspirin in the example given, is a negative reinforce that removes the headache, and as such increases the likelihood of the person taking aspirin in future when such aversive stimulus occurs.

mrjdaddy445,

    use for an educational purpose.

representative

i would definitly say b : )