Which sentence demonstrates the appropriate level of formality to use when communicating with coworkers?

hey, seriously, don’t leave the computer on.
i would like to request your cooperation in ensuring that the computer is shut down at the termination of business hours.
remember to turn off your computer at the end of the day.
failure to properly shut down the computer will eventuate in technical difficulties.

Read the excerpt from a research essay published in a printed book. binge-watching television shows several times a week has a negative impact on people’s social lives. according to a study conducted by dr. cynthia toles, adults who binge-watched more than one show a week were more prone to insomnia and a less-healthy diet. further, "the process of watching several episodes of one show consecutively can cause changes to one’s sleep patterns” (toles). to follow mla citation rules properly, what does the author of this essay need to do? a.) add a citation after each sentence in the essay b.) include a page number after the author’s name c.) remove the reference to the name of the doctor d.) place an end quotation mark after the end parenthesis