Which animal has been trained using a form of stimulus control known as targeting?

a. a sea lion that waves its flipper at an audience
b. a parrot that mimics human speech
c. a dog that stops barking on command
d. a dolphin that touches a stick with its snout

Ans: d. a dolphin that touches a stick with its snout. Targeting involves training an animal to approach and touch an object. It is often used in zoos to position an animal for medical treatment and is used by search and rescue teams to guide a dog into an area that cannot be traversed by a human handler.