When a reinforcer is re-introduced to an organism's environment, the behavior that preceded it:

(1 point)
Responses

does not return at all
does not return at all

returns in a much longer time than it took to learn it in the first place
returns in a much longer time than it took to learn it in the first place

returns in a shorter time than it took to learn it in the first place
returns in a shorter time than it took to learn it in the first place

is absolutely unpredictable

returns in a shorter time than it took to learn it in the first place