Answer: C. Secondary, Primary
Step-by-step explanation:
A secondary reinforcer are money, grades, or tokens etc. Anything that will basically benefit you for a long run. Primary reinforcers are food, drinks, pleasure, etc. Anything that will only last for a couple of sec, min, hours, and possibly a coupleof days. It won't benefit you anything good really like school grades benefit your future as in careers or jobs and money you can save for college, or use it to buy something. Anything that you can consume like candy only last a litttle because you soon will not have it anymore.
Hope this helps. :)