Cheryl was learning to place a food order when at a local restaurant. During her training period, Cheryl was taught to make her selection when asked, "May I take your order." However, when at the local restaurant Cheryl did not respond with her food order when asked, "What can I get you." Cheryl demonstrated a lack of ____________.a. response generalization
b. stimulus generalization
c. response maintenance
d. A and B only