Answer:
operant conditioning
Explanation:
To maintain a non-violent atmosphere in her classroom, Mrs. Elliot gives one golden star to every student who plays nicely with the other students. Mrs. Elliot's actions are in line with operant conditioning .Operant conditioning sometimes referred to as instrumental conditioning is a method of learning that occurs through rewards and punishments for behavior. Through operant conditioning, an association is made between a behavior and a consequence for that behavior. By contrast, every student who plays nicely with the other students will Mrs Eliot give one golden star to.
90, because 1 fits into 90, 90 times.
I believe the answer you're looking for is D.
