English argumentative writing usually employs a linear rhetorical style. Please select from the following excerpts the one that represents a linear rhetorical style.

A、Socialmediaisnegativelyimpactingcommunicationbecausepeople’stimeisbeingdividedamongalargernumberofcontacts.Modernsocialmediahasexistedforaroundtwentyyears.Technologicallyspeaking,twentyyearsisalongtime.Socialmediahashadbothpositiveandnegativeimpactsoncommunication.;
B、Modernsocialmediahasexistedforaroundtwentyyears.Technologicallyspeaking,twentyyearsisalongtime.Socialmediahashadbothpositiveandnegativeimpactsoncommunication.Socialmediaisnegativelyimpactingcommunicationbecausepeople’stimeisbeingdividedamongalargernumberofcontacts.;
C、Socialmediaisnegativelyimpactingcommunicationbecausepeople’stimeisbeingdividedamongalargernumberofcontacts.Consequently,therelationshipbetweenthemandthesharedacquaintancemaydeteriorateduetogreater“competition”forattention.This,inturn,iscausinganumberofwidespreadsocialproblems.;
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