Once a policy is developed to address an issue who implements and enforces it A) government agencies and police forces

B) citizens and specialized businesses

C) lobbyist and interest groups

D) legislators and judicial officials

D

Explanation:

Once a policy is developed to address an issue, who implements and enforces it?

government agencies and police forces

citizens and specialized businesses

lobbyists and interest groups

legislators and judicial officials

this null effect is caused by a weak manipulation and ineffective internal validity. in a scientific study, as the one dr. morimoto is trying to perfom, internal validity refers to the confidence placed in the cause-effect relationship and to how well an experiment is done and able to eliminate confounding variables.        

answer; the rudder on ship ;