Public policy can be best defined as

Public policy can be generally defined as a system of laws, regulatory measures, courses of action, and funding priorities concerning a given topic promulgated by a governmental entity or its representatives. A major aspect of public policy is law.

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laws or principles made by a society and its government

Explanation:

I did it on USATestprep

answer; (a) he was a u.s senator for 38 years;

the right answer is d