Question

Every time stacey puts the keys in her car's ignition the car begins to make a ding sound until she buckles her seat belt. What is the reinforce

Answer 1

I believe the answer is: negative reinforcement

Negative reinforcement refers to the type of reinforcement a form of reinforcement that make a subject become uncomfortable to the point where the subject would do some efforts to avoid or eliminate the negative reinforcement  (just like the horrendous ding sound)

Answer 2

Every time Stacey puts the keys in her car's ignition the car begins to make a ding sound until she buckles her seat belt. That is a negative reinforcement.