Because people respond to incentives, a. policymakers can alter outcomes by changing punishments or rewards. b. policies can have unintended consequences. c. society faces a trade-off between efficiency and equality. d. All of the above.

d. All of the above.

Explanation:

-A policymaker is a person who tends to create plans and ideas, significantly those that is carried out by a government or business.

-Policymakers require to think about specific incentives so that they can comprehend how individuals will respond to the different policies they tend to put in place. Generally, policy actions are supposed to have unintended consequences.

-In the question above, the given statement represents option-d as correct.

answer; cattle ranching on the savanna,and forestry in the amazon;