The ability to repeat actions observed at an earlier time is ____

Which of these statements concerning "enriched" environments is FALSE?

A) Enriched environments have little effect on experience-expectant or experience-dependent development. B) Enriched environments can include colorful and varied toys and books. C) Enriched environments stimulate the development of the brain. D) Enriched environments can be presented by parents or other caregivers.

Using in vivo exposure, a behavior therapist ____

a. ?uses electric shock to create a negative association with a maladaptive behavior b. ?uses imaginary painful stimuli to create a negative association with a maladaptive behavior c. ?gradually introduces a fearful person to an imaginary feared stimulus d. ?gradually introduces a fearful person to the actual feared stimulus