Which option would likely be most effective?

Question

My mom wants my brother to work hard to prepare for his mid-year Mathematics examination. He has to attend tuition which he hates. She is considering between the following options to encourage him to pass his Mathematics paper.

A is No computer games if he fails

B is Extra tuition if he fails

C is A trip to Disneyland if he passes

D is No more tuition if he passes

What would be the similarities and differences between the options?And which option would likely be most effective? Could someone please explain?

Answer 1

Definitely a mixture of C and D. A and B just wont work