If I recall correctly from my World History days, then it is D.
Answer: C. is what I believe it is
1. bought an end to genocide
2. condemned the use of nuclear weapons
3. Ruled on provision for the postwar occupation of Germany
4. established principles of responsibility for human rights violations
Answer:
Fixed ratio
Explanation:
The Fixed ratio schedule is used in ope-rant conditioning. Ope-rant conditioning is work on the relationship of response and stimulus due to that the behavior of a subject has been changed.
As the name indicated the reinforcement is being given after a fixed ratio for example after every ten times the reinforcement is provided to the rat in the box. So the rat can learn the behavior.
In this type of reinforcement, the schedule will remain constant. If the reinforcement is not provided after a fifth, tenth or any fixed number then it won't be a fixed ratio.