Jean twenge asked undergraduates to complete a personality measure and gave them bogus feedback on their test results. students who received feedback that they would be isolated toward the end of their lives were

They were "significantly more likely than other students to engage in unhealthy behaviors".

People tend to naturally incline towards positive or negative attitudes and conducts keeping in mind the end goal of being successful or not, in this case fear of being left alone and loneliness played its part.

every society, in order to meet the needs of it's people, has to answer three basic questions:

- what should we produce?

- how should we produce it?

- for whom should we produce it?

this questions must be answered in order to, option b, aid in production decisions.

every country can't produce everything, no matter how rich their land is. it may be a matter of technology, resources or geographical conditions. so, these three questions must be resolved in order to get the most of the production of each land.

hope this !