A trainer wants to train a chicken to peck a key to obtain food. If she wants the chicken to learn this trick quickly and the behavior to be resistant to extinction, she should use ________ reinforcement until the response is mastered and then follow with a period of ________ reinforcement.
A. Positive; Negative
B. Negative; Positive
C. Primary; Secondary
D. Partial; Continuous
E. Continuous; Partial
