A project whose positive
exceed its
is more likely
to be enacted that one that is the opposite.

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.        

i think it is the third one.

states grant a variety of local governments power to meet residents’ needs (source: apex learning). hope this !