I believe that the student who listens to music is just as devoted to its Work and makes you calmer and more relaxed and it does have more of a tendency to make you be focused as in the student who doesn't listen to music may distract him/her so either way it depends on whether they can focus and devote their time to actually working and being progressive
1.) Out of the choices given here, a computer game that can be purchased online and played right away has good time utility. The other choices didn't seem to be a good fit for this particular question. The correct answer is D.
2.) Hours of labor or the number of workers are common ways of measuring a company's division of labor. The correct answer is A, division of labor.
A) get money from other sources